YAMAUCHI Shigeo
| Vice President | Vice President |
| Faculty Division of Natural Sciences Research Group of Physics | Professor |
| Academic Information Center | Director, Academic Information Center |
| Information Technology Center | Director, Information Technology Center |
| Research organization of Integrative STEAM Education | Director, Research organization of Integrative STEAM Education |
Last Updated :2025/06/13
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YamauchiName (Kana)
Shigeo
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■Ⅱ．研究活動実績
Published Papers
- Refereed, Journal of Astronomical Telescopes, Instruments, and Systems, SPIE-Intl Soc Optical Eng, Verification of the timing system for the X-ray Imaging and Spectroscopy Mission in the GPS unsynchronized mode, Megumi Shidatsu; Yukikatsu Terada; Takashi Kominato; So Kato; Ryohei Sato; Minami Sakama; Takumi Shioiri; Yugo Motogami; Yuuki Niida; Chulsoo Kang; Toshihiro Takagi; Taichi Nakamoto; Chikara Natsukari; Makoto S. Tashiro; Kenichi Toda; Hironori Maejima; Shin Watanabe; Ryo Iizuka; Rie Sato; Chris Baluta; Katsuhiro Hayashi; Tessei Yoshida; Shoji Ogawa; Yoshiaki Kanemaru; Kotaro Fukushima; Akio Hoshino; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Kazuhiro Nakazawa; Shin’ichiro Uno; Ken Ebisawa; Satoshi Eguchi; Satoru Katsuda; Aya Kubota; Naomi Ota; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi; Tomokage Yoneyama; Satoshi Yamada; Nagomi Uchida; Matt Holland; Michael Loewenstein; Tahir Yaqoob; Eric D. Miller; Robert S. Hill; Efrain C. Perez-Solis; Morgan D. Waddy; Mark Mekosh; Joseph B. Fox; Isabella S. Brewer; Emily Aldoretta; Koji Mukai; Kenji Hamaguchi; François Mernier; Anna Ogorzalek; Katja Pottschmidt; Mihoko Yukita, 03 Jun. 2025, 11, 04, Scientific journal, 10.1117/1.jatis.11.4.042012
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), A new candidate of a cluster of galaxies behind the Galactic plane, AX J145732-5901, Shigeo Yamauchi; Masaru Ueno, Abstract
AX J145732-5901 is an unidentified X-ray source discovered in the ASCA Galactic Plane Survey. Its extended nature and heavily absorbed X-ray spectrum suggest that AX J145732-5901 is a cluster of galaxies behind the Galactic plane. However, due to limited photon statistics, the spectral shape was not well examined. Using the results of the Galactic ridge X-ray emission and cosmic X-ray background studies based on the Suzaku observations, we reanalyzed the ASCA data of AX J145732-5901. We confirmed that the source is more extended than the point spread function and the angular size is $14^{\prime }\times 10^{\prime }$. The spectrum was heavily absorbed by interstellar matter equivalent to an $N_{\rm H}$ of ${\sim}10^{23}$ cm$^{-2}$ and the emission line feature was confirmed. The spectrum was represented by a thin thermal plasma model with a temperature of 2.6 keV and a redshift of 0.12. Assuming the redshift value, the X-ray luminosity is calculated to be $2.6\times 10^{44}$ erg s$^{-1}$ in the 1–10 keV energy band. The observational results indicate that AX J145732-5901 is a cluster of galaxies behind the Galactic plane., 20 May 2025, 77, Scientific journal, 10.1093/pasj/psaf044 - Refereed, Nature, Springer Science and Business Media LLC, Structured ionized winds shooting out from a quasar at relativistic speeds, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V. Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; María Díaz Trigo; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan Eckart; Dominique Eckert; Teruaki Enoto; Satoshi Eguchi; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A. García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D. Miller; Jon M. Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick Scott Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi G. Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J. Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Valentina Braito; Pierpaolo Condò; Keigo Fukumura; Adam Gonzalez; Alfredo Luminari; Aiko Miyamoto; Ryuki Mizukawa; James Reeves; Riki Sato; Francesco Tombesi; Yerong Xu, 14 May 2025, 641, 8065, 1132, 1136, Scientific journal, 10.1038/s41586-025-08968-2
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Non-thermal neutral iron line emission in the supernova remnants G304.6+0.1 and G346.6-0.2 interacting with molecular clouds, Tomomi Morikawa; Kumiko K Nobukawa; Shigetaka Saji; Hidetoshi Sano; Koharu Hirano; Masayoshi Nobukawa; Shigeo Yamauchi; Hideki Uchiyama; Hironori Matsumoto, Abstract
The non-thermal neutral iron line can be a probe of low-energy cosmic rays; when low-energy cosmic rays ionize iron atoms in the interstellar medium, the atoms would emit the non-thermal neutral iron line. In this paper, we investigated the non-thermal neutral iron line in a couple of supernova remnants (SNRs), G304.6$+$0.1 and G346.6-0.2, which are known to be associated with molecular clouds. Analyzing the Suzaku archive data, we discovered enhancements of the neutral iron line with a significance level of $\sim \! 3\sigma$ in the two SNRs. In addition, we conducted a detailed study of CO clouds associated with G304.6$+$0.1 to examine in detail the evidence for the shock–cloud interaction and found cavity-like structures in the position–velocity diagram of CO not only in a velocity range of $-31$ to $-14$ km s$^{-1}$, which corresponds to the interacting cloud reported in a previous study, but also in a velocity range of $-42$ to $-30$ km s$^{-1}$. The enhancements of the neutral iron line of both SNRs are spatially associated with the SNR shells and the CO clouds that interact with the SNRs. There are no irradiating bright X-ray sources around the SNRs, and the photoionization cannot explain the neutral iron line intensities. The most plausible origin of the enhancements is the bombardment of low-energy cosmic rays, which were accelerated by the SNR shells and directly injected into the molecular clouds., 24 Apr. 2025, 77, Scientific journal, 10.1093/pasj/psaf027 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), X-Ray Imaging and Spectroscopy Mission, Makoto Tashiro; Richard Kelley; Shin Watanabe; Hironori Maejima; Lillian Reichenthal; Kenichi Toda; Leslie Hartz; Andrea Santovincenzo; Kyoko Matsushita; Hiroya Yamaguchi; Robert Petre; Brian Williams; Matteo Guainazzi; Elisa Costantini; Yoh Takei; Yoshitaka Ishisaki; Ryuichi Fujimoto; Joy Henegar-Leon; Gary Sneiderman; Hiroshi Tomida; Koji Mori; Hiroshi Nakajima; Yukikatsu Terada; Matthew Holland; Michael Loewenstein; Eric Miller; Makoto Sawada; Timothy Kallman; Jelle Kaastra; Chris Done; Teruaki Enoto; Aya Bamba; Lia Corrales; Yoshihiro Ueda; Erin Kara; Irina Zhuravleva; Yutaka Fujita; Yoshitaka Arai; Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Chris Baluta; Nobutaka Bando; Ehud Behar; Thomas Bialas; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V Brown; Meng Chiao; Renata Cumbee; Cor de Vries; Jan-Willem den Herder; María Díaz Trigo; Michael DiPirro; Tadayasu Dotani; Jacobo Ebrero Carrero; Ken Ebisawa; Megan Eckart; Dominique Eckert; Satoshi Eguchi; Yuichiro Ezoe; Carlo Ferrigno; Adam Foster; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier Garcia Martinez; Nathalie Gorter; Martin Grim; Liyi Gu; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Takafumi Horiuchi; Ann Hornschemeier; Akio Hoshino; Yuto Ichinohe; Chisato Ikuta; Ryo Iizuka; Daiki Ishi; Manabu Ishida; Naoki Ishihama; Kumi Ishikawa; Kosei Ishimura; Tess Jaffe; Satoru Katsuda; Yoshiaki Kanemaru; Steven Kenyon; Caroline Kilbourne; Mark Kimball; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Keiichi Matsuzaki; Dan McCammon; Brian McLaughlin; Brian McNamara; Francois Mernier; Joseph Miko; Jon Miller; Kenji Minesugi; Shinji Mitani; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Kazuhiro Nakazawa; Chikara Natsukari; Jan-Uwe Ness; Kenichiro Nigo; Mari Nishiyama; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Mina Ogawa; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Atsushi Okamoto; Naomi Ota; Masanobu Ozaki; Stephane Paltani; Paul Plucinsky; F Scott Porter; Katja Pottschmidt; Jose Antonio Quero; Takahiro Sasaki; Kosuke Sato; Rie Sato; Toshiki Sato; Yoichi Sato; Hiromi Seta; Maki Shida; Megumi Shidatsu; Shuhei Shigeto; Russel Shipman; Keisuke Shinozaki; Peter Shirron; Aurora Simionescu; Randall Smith; Yang Soong; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Shinichiro Uno; Jacco Vink; Michael Witthoeft; Rob Wolfs; Satoshi Yamada; Shinya Yamada; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Keiichi Yanagase; Tahir Yaqoob; Susumu Yasuda; Tomokage Yoneyama; Tessei Yoshida; Miohoko Yukita, Abstract
The X-Ray Imaging and Spectroscopy Mission (XRISM) is a joint mission between the Japan Aerospace Exploration Agency (JAXA) and the National Aeronautics and Space Administration (NASA) in collaboration with the European Space Agency (ESA). In addition to the three space agencies, universities and research institutes from Japan, North America, and Europe have joined to contribute to developing satellite and onboard instruments, data-processing software, and the scientific observation program. XRISM is the successor to the ASTRO-H (Hitomi) mission, which ended prematurely in 2016. Its primary science goal is to examine astrophysical problems with precise, high-resolution X-ray spectroscopy. XRISM promises to discover new horizons in X-ray astronomy. It carries a 6 × 6 pixelized X-ray microcalorimeter on the focal plane of an X-ray mirror assembly (Resolve) and a co-aligned X-ray CCD camera (Xtend) that covers the same energy band over a large field of view. XRISM utilizes the Hitomi heritage, but all designs were reviewed. The attitude and orbit control system was improved in hardware and software. The spacecraft was launched from the JAXA Tanegashima Space Center on 2023 September 6 (UTC). During the in-orbit commissioning phase, the onboard components were activated. Although the gate valve protecting the Resolve sensor with a thin beryllium X-ray entrance window was not yet opened, scientific observation started in 2024 February with the planned performance verification observation program. The nominal observation program commenced with the following guest observation program beginning in 2024 September., 11 Apr. 2025, Scientific journal, 10.1093/pasj/psaf023 - Journal of Astronomical Telescopes, Instruments, and Systems, SPIE-Intl Soc Optical Eng, Development of the timing system for the X-ray imaging and spectroscopy mission, Yukikatsu Terada; Megumi Shidatsu; Makoto Sawada; Takashi Kominato; So Kato; Ryohei Sato; Minami Sakama; Takumi Shioiri; Yuki Niida; Chikara Natsukari; Makoto S. Tashiro; Kenichi Toda; Hironori Maejima; Katsuhiro Hayashi; Tessei Yoshida; Shoji Ogawa; Yoshiaki Kanemaru; Akio Hoshino; Kotaro Fukushima; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Kazuhiro Nakazawa; Shin’ichiro Uno; Ken Ebisawa; Satoshi Eguchi; Satoru Katsuda; Aya Kubota; Naomi Ota; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi; Tomokage Yoneyama; Satoshi Yamada; Nagomi Uchida; Shin Watanabe; Ryo Iizuka; Rie Sato; Chris Baluta; Matt Holland; Michael Loewenstein; Eric D. Miller; Tahir Yaqoob; Robert S. Hill; Morgan D. Waddy; Mark Mekosh; Joseph B. Fox; Emily Aldoretta; Isabella Brewer; Koji Mukai; Kenji Hamaguchi; François Mernier; Anna Ogorzalek; Katja Pottschmidt; Mihoko Yukita; Toshihiro Takagi; Yugo Motogami; Teruaki Enoto; Takaaki Tanaka; Taichi Nakamoto; Chulsoo Kang; Tsuyoshi Miyazaki, 07 Apr. 2025, 11, 04, Scientific journal, 10.1117/1.jatis.11.4.042007
- Refereed, The Astrophysical Journal Letters, American Astronomical Society, XRISM Reveals Low Nonthermal Pressure in the Core of the Hot, Relaxed Galaxy Cluster A2029, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V. Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; Maria Diaz Trigo; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E. Eckart; Dominique Eckert; Satoshi Eguchi; Teruaki Enoto; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A. García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D. Miller; Jon M. Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick S. Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J. Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Tommaso Bartalesi; Stefano Ettori; Roman Kosarzycki; Lorenzo Lovisari; Tom Rose; Arnab Sarkar; Ming Sun; Prathamesh Tamhane, Abstract
We present XRISM Resolve observations of the core of the hot, relaxed galaxy cluster Abell 2029 (A2029). We find that the line-of-sight bulk velocity of the intracluster medium (ICM) within the central 180 kpc is at rest with respect to the brightest cluster galaxy, with a 3σ upper limit of ∣v bulk∣ < 100 km s−1. We robustly measure the field-integrated ICM velocity dispersion to be σ v = 169 ± 10 km s−1, obtaining similar results for both single-temperature and two-temperature plasma models to account for the cluster cool core. This result, if ascribed to isotropic turbulence, implies a subsonic ICM with Mach number and a nonthermal pressure fraction of 2.6 ± 0.3%. The turbulent velocity is similar to what was measured in the core of the Perseus cluster by Hitomi, but here in a more massive cluster with an ICM temperature of 7 keV, the limit on the nonthermal pressure fraction is even more stringent. Our result is consistent with expectations from simulations of relaxed clusters, but it is on the low end of the predicted distribution, indicating that A2029 is an exceptionally relaxed cluster with no significant impacts from either a recent minor merger or active galactic nucleus activity., 12 Mar. 2025, 982, 1, L5, Scientific journal, 10.3847/2041-8213/ada7cd - Refereed, Nature, Springer Science and Business Media LLC, The bulk motion of gas in the core of the Centaurus galaxy cluster, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V. Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E. Eckart; Dominique Eckert; Teruaki Enoto; Satoshi Eguchi; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A. García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D. Miller; Jon M. Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick Scott Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; María Díaz Trigo; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi G. Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J. Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y. Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Marie Kondo; Norbert Werner; Tomáš Plšek; Ming Sun; Kokoro Hosogi; Anwesh Majumder, 12 Feb. 2025, 638, 8050, 365, 369, Scientific journal, 10.1038/s41586-024-08561-z
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Overionized plasma in the supernova remnant Sagittarius A East anchored by XRISM observations, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; Maria Diaz-Trigo; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan Eckart; Dominique Eckert; Teruaki Enoto; Satoshi Eguchi; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D Miller; Jon M Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick Scott Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi G Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Q Daniel Wang; Yuki Amano; Kojiro Tanaka; Takuto Narita; Yuken Ohshiro; Anje Yoshimoto; Yuma Aoki; Mayura Balakrishnan, Abstract
Sagittarius A East is a supernova remnant with a unique surrounding environment, as it is located in the immediate vicinity of the supermassive black hole at the Galactic center, Sagittarius A$^{*}$. The X-ray emission of the remnant is suspected to show features of overionized plasma, which would require peculiar evolutionary paths. We report on the first observation of Sagittarius A East with the X-Ray Imaging and Spectroscopy Mission (XRISM). Equipped with a combination of a high-resolution microcalorimeter spectrometer and a large field-of-view CCD imager, we for the first time resolved the Fe xxv K-shell lines into fine structure lines and measured the forbidden-to-resonance intensity ratio to be $1.39 \pm 0.12$, which strongly suggests the presence of overionized plasma. We obtained a reliable constraint on the ionization temperature just before the transition into the overionization state, of $\gt\! 4\:$keV. The recombination timescale was constrained to be $\lt\! 8 \times 10^{11} \:$cm$^{-3}\:$s. The small velocity dispersion of $109 \pm 6\:$km$\:$s$^{-1}$ indicates a low Fe ion temperature $\lt\! 8\:$keV and a small expansion velocity $\lt\! 200\:$km$\:$s$^{-1}$. The high initial ionization temperature and small recombination timescale suggest that either rapid cooling of the plasma via adiabatic expansion from dense circumstellar material or intense photoionization by Sagittarius A$^{*}$ in the past may have triggered the overionization., 26 Dec. 2024, 77, 1, L1, L8, Scientific journal, 10.1093/pasj/psae111 - Refereed, The Astrophysical Journal Letters, American Astronomical Society, The XRISM/Resolve View of the Fe K Region of Cyg X-3, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V. Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; María Díaz Trigo; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E. Eckart; Dominique Eckert; Satoshi Eguchi; Teruaki Enoto; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A. García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D. Miller; Jon M. Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick S. Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J. Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Ryota Tomaru; Tasuku Hayashi; Tomohiro Hakamata; Daiki Miura; Karri Koljonen; Mike McCollough, Abstract
The X-ray binary system Cygnus X-3 (4U 2030+40, V1521 Cyg) is luminous but enigmatic owing to the high intervening absorption. High-resolution X-ray spectroscopy uniquely probes the dynamics of the photoionized gas in the system. In this Letter, we report on an observation of Cyg X-3 with the XRISM/Resolve spectrometer, which provides unprecedented spectral resolution and sensitivity in the 2–10 keV band. We detect multiple kinematic and ionization components in absorption and emission whose superposition leads to complex line profiles, including strong P Cygni profiles on resonance lines. The prominent Fe xxv Heα and Fe xxvi Lyα emission complexes are clearly resolved into their characteristic fine-structure transitions. Self-consistent photoionization modeling allows us to disentangle the absorption and emission components and measure the Doppler velocity of these components as a function of binary orbital phase. We find a significantly higher velocity amplitude for the emission lines than for the absorption lines. The absorption lines generally appear blueshifted by ∼−500–600 km s−1. We show that the wind decomposes naturally into a relatively smooth and large-scale component, perhaps associated with the background wind itself, plus a turbulent, denser structure located close to the compact object in its orbit., 11 Dec. 2024, 977, 2, L34, L34, Scientific journal, 10.3847/2041-8213/ad8ed0 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), The XRISM first-light observation: Velocity structure and thermal properties of the supernova remnant N 132D, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; Maria Diaz-Trigo; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan Eckart; Dominique Eckert; Teruaki Enoto; Satoshi Eguchi; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D Miller; Jon M Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick Scott Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi G Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Manan Agarwal; Yuken Ohshiro, Abstract
We present an initial analysis of the X-Ray Imaging and Spectroscopy Mission (XRISM) first-light observation of the supernova remnant (SNR) N 132D in the Large Magellanic Cloud. The Resolve microcalorimeter has obtained the first high-resolution spectrum in the 1.6–10 keV band, which contains K-shell emission lines of Si, S, Ar, Ca, and Fe. We find that the Si and S lines are relatively narrow, with a broadening represented by a Gaussian-like velocity dispersion of $\sigma _v \sim 450$ km s$^{-1}$. However, the Fe He$\alpha$ lines are substantially broadened with $\sigma _v \sim 1670$ km s$^{-1}$. This broadening can be explained by a combination of the thermal Doppler effect due to the high ion temperature and the kinematic Doppler effect due to the SNR expansion. Assuming that the Fe He$\alpha$ emission originates predominantly from the supernova ejecta, we estimate the reverse shock velocity at the time when the bulk of the Fe ejecta were shock heated to be $-1000 \lesssim V_{\rm rs}$ (km s$^{-1}$) $\lesssim 3300$ (in the observer frame). We also find that Fe Ly$\alpha$ emission is redshifted with a bulk velocity of $\sim 890$ km s$^{-1}$, substantially larger than the radial velocity of the local interstellar medium surrounding N 132D. These results demonstrate that high-resolution X-ray spectroscopy is capable of providing constraints on the evolutionary stage, geometry, and velocity distribution of SNRs., 10 Oct. 2024, 76, 1186, 1201, Scientific journal, 10.1093/pasj/psae080 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Plasma diagnostics of supernova remnant 3C 400.2 by Suzaku observations, Masataka Onuma; Kumiko K Nobukawa; Masayoshi Nobukawa; Shigeo Yamauchi; Hideki Uchiyama, Abstract
We report on the results of plasma diagnostics of the supernova remnant (SNR) 3C 400.2, which has been reported to have a recombining plasma by previous studies. For careful background estimation, we simultaneously fitted spectra extracted from the SNR and background regions and evaluated the SNR emission contaminating the background-region spectrum as well as the background emission in the source-region spectrum. The SNR emission is explained by the collisional ionization equilibrium plasma originating from the interstellar medium and the ionizing plasma originating from the ejecta, in contrast to previous studies. In addition, we found an unidentified X-ray source near the SNR, Suzaku J1937.4$+$1718, which is accompanied by an emission line at $\sim$4.4 keV with a $2.8\sigma$ confidence level. Because there is no striking atomic line at the energy in the rest frame, Suzaku J1937.4$+$1718 could be an extragalactic object with a redshifted Fe line., 11 Sep. 2024, 76, 1202, 1210, Scientific journal, 10.1093/pasj/psae081 - Refereed, The Astrophysical Journal Letters, American Astronomical Society, XRISM Spectroscopy of the Fe Kα Emission Line in the Seyfert Active Galactic Nucleus NGC 4151 Reveals the Disk, Broad-line Region, and Torus, Marc Audard; Hisamitsu Awaki; Ralf Ballhausen; Aya Bamba; Ehud Behar; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V. Brown; Lia Corrales; Elisa Costantini; Renata Cumbee; Maria Diaz Trigo; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E. Eckart; Dominique Eckert; Teruaki Enoto; Satoshi Eguchi; Yuichiro Ezoe; Adam Foster; Ryuichi Fujimoto; Yutaka Fujita; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Javier A. García; Liyi Gu; Matteo Guainazzi; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Ann Hornschemeier; Yuto Ichinohe; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Yoshiaki Kanemaru; Richard Kelley; Caroline Kilbourne; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Michael Loewenstein; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; François Mernier; Eric D. Miller; Jon M. Miller; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Kazuhiro Nakazawa; Jan-Uwe Ness; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Shoji Ogawa; Anna Ogorzalek; Takashi Okajima; Naomi Ota; Stephane Paltani; Robert Petre; Paul Plucinsky; Frederick S. Porter; Katja Pottschmidt; Kosuke Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Hiromasa Suzuki; Andrew Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Makoto Tashiro; Yukikatsu Terada; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Shin Watanabe; Brian J. Williams; Satoshi Yamada; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Tomokage Yoneyama; Tessei Yoshida; Mihoko Yukita; Irina Zhuravleva; Xin Xiang; Takeo Minezaki; Margaret Buhariwalla; Dimitra Gerolymatou; Scott Hagen, Abstract
We present an analysis of the first two XRISM/Resolve spectra of the well-known Seyfert-1.5 active galactic nucleus (AGN) in NGC 4151, obtained in 2023 December. Our work focuses on the nature of the narrow Fe K α emission line at 6.4 keV, the strongest and most common X-ray line observed in AGN. The total line is found to consist of three components. Even the narrowest component of the line is resolved with evident Fe K α,1 (6.404 keV) and K α,2 (6.391 keV) contributions in a 2:1 flux ratio, fully consistent with neutral gas with negligible bulk velocity. Subject to the limitations of our models, the narrowest and intermediate-width components are consistent with emission from optically thin gas, suggesting that they arise in a disk atmosphere and/or wind. Modeling the three line components in terms of Keplerian broadening, they are readily associated with (1) the inner wall of the “torus,” (2) the innermost optical “broad-line region” (or “X-ray BLR”), and (3) a region with a radius of r ≃ 100 GM/c 2 that may signal a warp in the accretion disk. Viable alternative explanations of the broadest component include a fast-wind component and/or scattering; however, we find evidence of variability in the narrow Fe K α line complex on timescales consistent with small radii. The best-fit models are statistically superior to simple Voigt functions, but when fit with Voigt profiles the time-averaged lines are consistent with a projected velocity broadening of FWHM . Overall, the resolution and sensitivity of XRISM show that the narrow Fe K line in AGN is an effective probe of all key parts of the accretion flow, as it is currently understood. We discuss the implications of these findings for our understanding of AGN accretion, future studies with XRISM, and X-ray-based black hole mass measurements., 01 Sep. 2024, 973, 1, L25, L25, Scientific journal, 10.3847/2041-8213/ad7397 - Not Refereed, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, SPIE, Verification of the XRISM timing system in the GPS unsynchronized mode, Megumi Shidatsu; Yukikatsu Terada; Takashi Kominato; So Kato; Ryohei Sato; Minami Sakama; Takumi Shioiri; Yugo Motogami; Yuki Niida; Toshihiro Takagi; Chikara Natsukari; Makoto S. Tashiro; Kenichi Toda; Hironori Maejima; Shin Watanabe; Ryo Iizuka; Rie Sato; Chris Baluta; Katsuhiro Hayashi; Tessei Yoshida; Shoji Ogawa; Yoshiaki Kanemaru; Kotaro Fukushima; Akio Hoshino; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Kazuhiro Nakazawa; Shin'ichiro Uno; Ken Ebisawa; Satoshi Eguchi; Satoru Katsuda; Aya Kubota; Naomi Ota; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi; Tomokage Yoneyama; Satoshi Yamada; Nagomi Uchida; Matt Holland; Michael Loewenstein; Eric D. Miller; Tahir Yaqoob; Robert S. Hill; Trisha F. Doyle; Efrain Perez-Solis; Morgan D. Waddy; Mark Mekosh; Joseph B. Fox, 21 Aug. 2024, 235, 235, International conference proceedings, 10.1117/12.3019651
- Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, SPIE, Development and operation status of X-Ray Imaging and Spectroscopy Mission (XRISM), Makoto S. Tashiro; Shin Watanabe; Hironori Maejima; Kenichi Toda; Kyoko Matsushita; Hiroya Yamaguchi; Richard L. Kelley; Lillian S. Reichenthal; Leslie S. Hartz; Robert Petre; Brian J. Williams; Matteo Guainazzi; Andrea Santovincenzo; Elisa Costantini; Yoh Takei; Yoshitaka Ishisaki; Ryuichi Fujimoto; Joy Henegar-Leon; Gary Sneiderman; Hiroshi Tomida; Koji Mori; Hiroshi Nakajima; Yukikatsu Terada; Matt Holland; Micheal Loewenstein; Tomothey Kallman; Jelle Kaastra; Eric Miller; Makoto Sawada; Chris Done; Teruaki Enoto; Aya Bamba; Paul Plucinsky; Yoshitaka Ueda; Erin Kara; Irina Zhuravleva; Yutaka Fujita; Jose Antonio Quero; Yoshitaka Arai; Marc Audard; Hisamitsu Awaki; Chris Baluta; Nobutaka Bando; Ehud Behar; Thomas Bialas; Rozenn Boissay-Malaquin; Laura Brenneman; Gregory V. Brown; Meng Chiao; Lia Corrales; Renata Cumbee; Cor de Vries; Jan-Willem den Herder; Maria Diaz-Trigo; Michael DiPirro; Tadayasu Dotani; Jacobo Ebrero Carrero; Ken Ebisawa; Megan Eckart; Dominique Eckart; Satoshi Eguchi; Yuichiro Ezoe; Carlo Ferrgno; Adam Foster; Yasushi Fukazawa; Kotaro Fukushima; Akihiro Furuzawa; Luigi Gallo; Nathalie Gorter; Martin Grim; Liyi Gu; Koichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Natalie Hell; Edmund Hodges-Kluck; Takafumi Horiuchi; Ann Hornschemeier; Akio Hoshino; Yuto Ichinohe; Chisato Ikuta; Ryo Iizuka; Daiki Ishi; Manabu Ishida; Naoki Ishihama; Kumi Ishikawa; Kosei Ishimura; Tess Jaffe; Satoru Katsuda; Yoshiaki Kanemaru; Steven Kenyon; Caroline Kilbourne; Mark Kimball; Shunji Kitamoto; Shogo Kobayashi; Akihide Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Muzi Li; Yoshitomo Maeda; Maxim Markevitch; Hironori Matsumoto; Keiichi Matsuzaki; Dan McCammon; Brian McLaughlin; Brian McNamara; Josegh Miko; Jon Miller; Kenji Minesugi; Shinji Mitani; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Kazuhiro Nakazawa; Chikara Natsukari; Jan-Uwe Ness; Kenichiro Nigo; Mari Nishiyama; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Mina Ogawa; Shoji Ogawa; Takashi Okajima; Atsushi Okamoto; Naomi Ota; Masanobu Ozaki; Stephane Paltani; F. Scott Porter; Katja Pottschmidt; Takahiro Sasaki; Kosuke Sato; Rie Sato; Toshiki Sato; Yoichi Sato; Hiromi Seta; Maki Shida; Megumi Shidatsu; Shuhei Shigeto; Russel Shipman; Keisuke Shinozaki; Peter Shirron; Aurora Simionescu; Randall Smith; Young Soong; Hiromasa Suzuki; Andy Szymkowiak; Hiromitsu Takahashi; Mai Takeo; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Yoichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Nagomi Ucghida; Yuusuke Uchida; Hideki Uchiyama; Shinichiro Uno; Erik Van der Meer; Jacco Vink; Michael Wittheof; Rob Wolf; Satoshi Yamada; Shinya Yamada; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Keiichi Yamagase; Tahir Yaqoob; Susumu Yasuda; Tomokage Yoneyama; Tessei Yoshida, 21 Aug. 2024, 52, 52, Scientific journal, 10.1117/12.3019325
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Suzaku observation of an iron K-shell line in the spiral galaxy NGC 6946, Shigeo Yamauchi; Azusa Inaba; Yumiko Anraku, Abstract
An emission line at ∼6.7 keV is attributable to an He-like iron K-shell transition, which indicates existence of a thin thermal plasma with a temperature of several keV. Using Suzaku archival data, we searched for the iron K-line from the spiral galaxy NGC 6946, and found it at 6.68 ± 0.07 keV at the 3.1σ level in the central $r\le {2.^{\prime }5}$ region. The iron line luminosity from the central region was estimated to be (2.3 ± 1.2) × 1037 erg s−1 at a distance of 5.5 Mpc. The origin of the iron emission line is discussed., 07 May 2024, 76, 3, 523, 527, Scientific journal, 10.1093/pasj/psae028 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Detection of the neutral iron line from the supernova remnant W 49 B with Suzaku, Nari Suzuki; Shigeo Yamauchi; Kumiko K Nobukawa; Masayoshi Nobukawa; Satoru Katsuda, Abstract
Recent studies of supernova remnants (SNRs) have revealed that some SNRs exhibit a neutral iron line emission at 6.4 keV. This line has been proposed to originate from the interaction of high-energy particles formed in the SNR shell with the surrounding cold matter. We searched for the neutral iron line emission in the SNR W 49 B. Significant detection of the 6.4 keV line is found in the north-west region, close to the molecular cloud interacting with the SNR shell. In addition, an excess emission at 8–9 keV, in which Kγ, Kδ, and Kϵ lines of He-like iron exist, is also significantly found in the region where the radio shell is not bright. We discuss the origin of the 6.4 keV line and the excess emission at 8–9 keV., 08 Feb. 2024, 76, 2, 265, 271, Scientific journal, 10.1093/pasj/psae006 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Spectral analysis of the Galactic supernova remnant Kesteven 69 with Suzaku, Shigeo Yamauchi; Thomas G Pannuti, Abstract
The results of a Suzaku observation of the supernova remnant (SNR) Kesteven 69 = G21.8−0.6 are presented. To estimate the sky background precisely, we conducted a simultaneous fit of the source region spectrum with the background region spectrum and found that the SNR spectrum is well represented by a two-component ionizing plasma model composed of a low-temperature plasma at kTe = 0.80 ± 0.11 keV and a high-temperature plasma at kTe = 1.5 ± 0.4 keV. The existence of a low-ionized Fe K line at 6.49 ± 0.07 keV was confirmed. The center energy of the line is consistent with those of type Ia SNRs., 09 Oct. 2023, 75, 6, 1273, 1279, Scientific journal, 10.1093/pasj/psad068 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Suzaku spectral analysis of an X-ray emitting plasma in the supernova remnant G352.7−0.1, Asahi Fujishige; Shigeo Yamauchi; Kumiko K Nobukawa; Masayoshi Nobukawa, Abstract
The results of a Suzaku observation of the supernova remnant (SNR) G352.7−0.1 are presented in this paper. We conducted spectral analysis based on careful sky background estimation and found an emission line from Al at 1.6 keV, in addition to previously detected emission lines from Mg, Si, S, Ar, Ca, and Fe ions. The X-ray spectrum in the 0.7–10 keV band is represented by a two-component ionizing plasma model with different temperatures and ionization timescales. Based on the results, properties of the X-ray emitting plasma and the explosion type are discussed., 25 Jul. 2023, 75, 5, 907, 912, Scientific journal, 10.1093/pasj/psad048 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Spectral study of the Galactic ridge X-ray emission with Suzaku: Comparison of the spectral shape with point sources, Kumiko Yamamoto; Shigeo Yamauchi; Masayoshi Nobukawa; Kumiko K Nobukawa; Hideki Uchiyama, Abstract
The Galactic ridge X-ray emission (GRXE) is unresolved X-ray emission located on the Galactic plane, and whether the GRXE comes from truly diffuse plasma or unresolved point sources is still debatable. We present results of spectral analysis of the GRXE with Suzaku. In order to examine the point source origin, we fitted the GRXE spectra in the 1.2–10 keV energy band with a point source model, which is a mixture of active binary stars (ABs) and non-magnetic cataclysmic variables (non-mCVs), and found that the model cannot represent the GRXE spectral shape as long as the standard metal abundances of these species are assumed. In particular, the standard abundance model cannot account for the observed intensities of Si, S, and Ar lines as well as the previously reported Fe line. Assuming spatial densities in the solar neighborhood, integration of the ABs and non-mCVs accounts for only 30% of the observed GRXE flux. Other species of the point sources or diffuse emission with stronger Si, S, Ar, and Fe emission lines shall explain the rest., 20 Mar. 2023, Scientific journal, 10.1093/pasj/psad016 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Initial state of the recombining plasma in supernova remnant W 28, Rui Himono; Masayoshi Nobukawa; Shigeo Yamauchi; Kumiko K Nobukawa; Nari Suzuki, Abstract
We have investigated supernova remnant (SNR) W 28 using Suzaku archival data, and we report here the results of our spatially resolved analyses. We carried out spectral analyses using a recombining-plasma (RP) model with element-dependent initial ionization temperatures, obtaining ∼0.5 keV for Ne, ∼0.7 keV for Mg, ∼1.0 keV for Si, ∼1.2 keV for S, ∼1.4 keV for Ar, ∼1.7 keV for Ca, and ∼0.7 keV for Fe in the initial RP phase. In addition to the north-east regions where RPs have been reported previously, we find that the ionization temperatures in the south-east and south-west regions exhibit trends that are similar to those in the central region in the initial RP phase. We also find that the time elapsed from the initial phase of the RP to the present is shorter in the central region, ∼300 yr, and longer in the outside regions, ∼103–104 yr. Our results cannot be explained by simple scenarios involving thermal conduction into molecular clouds or by adiabatic cooling (due to rarefaction), indicating that more complex mechanisms or other scenarios are required. We also estimate the ejecta mass to be ≳14 M⊙, which indicates that this SNR was produced by a massive star., 08 Feb. 2023, Scientific journal, 10.1093/pasj/psad005 - Refereed, Advances in Space Research, Elsevier BV, Confirmation of dust scattering echo around MAXI J1421–613 by Swift observation, Kumiko K. Nobukawa; Masayoshi Nobukawa; Shigeo Yamauchi, Jan. 2023, 71, 1074, 1079, Scientific journal, 10.1016/j.asr.2022.09.003
- Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray, SPIE, Xappl: software framework for the XRISM pre-pipeline, Satoshi Eguchi; Makoto Tashiro; Yukikatsu Terada; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Shin'ichiro Uno; Aya Kubota; Kazuhiro Nakazawa; Shin Watanabe; Ryo Iizuka; Rie Sato; Tomokage Yoneyama; Chris Baluta; Ken Ebisawa; Yasushi Fukazawa; Katsuhiro Hayashi; So Kato; Satoru Katsuda; Takao Kitaguchi; Hirokazu Odaka; Masanori Ohno; Naomi Ota; Minami Sakama; Ryohei Sato; Megumi Shidatsu; Yasuharu Sugawara; Tsubasa Tamba; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Nagomi Uchida; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi; Masaaki Sakano; Tessei Yoshida; Satoshi Yamada, 31 Aug. 2022, International conference proceedings, 10.1117/12.2629316
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Suzaku observations of Fe K-shell lines in the supernova remnant W 51 C and hard X-ray sources in the proximity, Aika Shimaguchi; Kumiko K Nobukawa; Shigeo Yamauchi; Masayoshi Nobukawa; Yutaka Fujita, Abstract
In this paper, we investigate the Fe K-shell lines in the supernova remnant W 51 C and hard X-ray sources in the proximity. We measure the intensities of the Fe i Kα and Fe xxv Heα lines at 6.40 and 6.68 keV, respectively, and find that the intensity of the 6.68 keV line is consistent with the background level expected from previous studies, while that of the 6.40 keV line is higher at the significance level of 2.0σ. Given the presence of gamma-ray emission and high ionization rate point spatially coincident with the remnant, we conclude that the enhanced 6.40 keV line most likely originates from the interaction between low-energy cosmic rays and molecular clouds. Also, we discover an enhanced 6.68 keV line emission from the compact H ii region G49.0−0.3 at a significance level of 3.4σ. Spectral analysis reveals that the temperature and abundance of the thermal plasma with the 6.68 keV line is $kT=3.0^{+0.8}_{-0.7}$ keV and Z = 0.5 ± 0.2 solar, respectively. These values are explained by the thermal plasma generated by the stellar winds of O stars., 02 Jun. 2022, 74, 3, 656, 663, Scientific journal, 10.1093/pasj/psac026 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Spectral and timing properties of the black hole candidate X1755−338 observed in 1989–1995, Shigeo Yamauchi; Sakiho Maeda,
Abstract
We report results of an analysis of the black hole (BH) candidate source X1755−338 made in 1989, 1990, and 1991 with Ginga, and in 1995 with ASCA. The spectra were well represented by a model consisting of a soft thermal emission from an accretion disk and a hard X-ray tail. The normalization of the multi-color disk, related to the inner disk radius, was similar to each other. The unabsorbed X-ray fluxes from the disk component in the 0.01–10 keV band were estimated to be 1.3 × 10−9, 3.0 × 10−9, 9.8 × 10−10, and 2.4 × 10−9 erg s−1 cm−2 in 1989, 1990, 1991, and 1995, respectively, and are proportional to $kT_{\rm in}^4$, where kTin is a temperature at the inner disk radius. Based on the standard accretion disk model for a non-rotating BH, our results suggest either a small BH mass or a large inclination angle. Otherwise, X1755−338 is a rotating BH. The hard X-ray intensity was found to be variable, while the soft X-ray intensity was stable. Although previous work showed the existence of an iron line at 6.7 keV, no clear iron line feature was found in any of the spectra. We infer that most of the iron line flux reported in the previous work was due to contamination of the Galactic diffuse X-ray emission., 04 Aug. 2021, 73, 4, 830, 836, Scientific journal, 10.1093/pasj/psab048 - Refereed, Journal of Astronomical Telescopes, Instruments, and Systems, SPIE-Intl Soc Optical Eng, Detail Design of the Science Operations for the XRISM mission, Yukikatsu Terada; Matt Holland; Michael Loewenstein; Makoto Tashiro; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Takayuki Tamura; Shin’ichiro Uno; Shin Watanabe; Chris Baluta; Laura Burns; Ken Ebisawa; Satoshi Eguchi; Yasushi Fukazawa; Katsuhiro Hayashi; Ryo Iizuka; Satoru Katsuda; Takao Kitaguchi; Aya Kubota; Eric Miller; Koji Mukai; Shinya Nakashima; Kazuhiro Nakazawa; Hirokazu Odaka; Masanori Ohno; Naomi Ota; Rie Sato; Makoto Sawada; Yasuharu Sugawara; Megumi Shidatsu; Tsubasa Tamba; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi; Tahir Yaqoob, Jul. 2021, 7, 03, 037001, Scientific journal, 10.1117/1.jatis.7.3.037001
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), A systematic comparison of ionization temperatures between ionizing and recombining plasmas in supernova remnants, Shigeo Yamauchi; Masayoshi Nobukawa; Katsuji Koyama,
Abstract
The temperatures of the plasma in supernova remnants (SNRs) are initially very low just after the shock heating. The electron temperature (kTe) increases quickly by Coulomb interaction, and then the energetic electrons gradually ionize atoms to increase the ionization temperature (kTi). The observational fact is that most young and middle-to-old SNRs have lower kTi than kTe after the shock heating. The temperature evolution in shell-like SNRs has been explained by this ionizing plasma (IP) scenario. On the other hand, in the last decade, a significant fraction of mixed-morphology SNRs was found to exhibit a recombining plasma (RP) with higher kTi than kTe. The origin and the evolution mechanism of RP SNRs have been puzzling. To address this puzzle, this paper presents kTe and kTi profiles using follow-up Suzaku observations, and then proposes a new scenario for the temperature and morphology evolution in IP and RP SNRs., 13 Jun. 2021, 73, 3, 728, 734, Scientific journal, 10.1093/pasj/psab033 - Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, SPIE, The XRISM science data center: optimizing the scientific return from a unique x-ray observatory, Michael Loewenstein; Robert S. Hill; Matthew P. Holland; Eric D. Miller; Tahir Yaqoob; Trisha F. Doyle; Patricia L. Hall; Efrem Braun; Christopher J. Baluta; Koji Mukai; Yukikatsu Terada; Makoto S. Tashiro; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Takayuki Tamura; Shin'ichiro Uno; Shin Watanabe; Ken Ebisawa; Satoshi Eguchi; Yasushi Fukazawa; Ryo Iizuka; Satoru Katsuda; Takao Kitaguchi; Aya Kubota; Shinya Nakashima; Kazuhiro Nakazawa; Hirokazu Odaka; Masanori Ohno; Naomi Ota; Rie Sato; Yasuharu Sugawara; Megumi Shidatsu; Tsubasa Tamba; Yuichi Terashima; Yohko Tsuboi; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi, 13 Dec. 2020, International conference proceedings, 10.1117/12.2560840
- Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, SPIE, Status of x-ray imaging and spectroscopy mission (XRISM), Makoto S. Tashiro; Hironori Maejima; Kenichi Toda; Richard L. Kelley; Lillian Reichenthal; Leslie Hartz; Robert Petre; Brian J. Williams; Matteo Guainazzi; Elisa Costantini; Ryuichi Fujimoto; Kiyoshi Hayashida; Joy Henegar-Leon; Matt Holland; Yoshitaka Ishisaki; Caroline Kilbourne; Mike Loewenstein; Kyoko Matsushita; Koji Mori; Takashi Okajima; F. Scott Porter; Gary Sneiderman; Yoh Takei; Yukikatsu Terada; Hiroshi Tomida; Hiroya Yamaguchi; Shin Watanabe; Hiroki Akamatsu; Yoshitaka Arai; Marc Audard; Hisamitsu Awaki; Iurii Babyk; Aya Bamba; Nobutaka Bando; Ehud Behar; Thomas Bialas; Rozenn Boissay-Malaquin; Laura Brenneman; Greg Brown; Edgar Canavan; Meng Chiao; Brian Comber; Lia Corrales; Renata Cumbee; Cor de Vries; Jan-Willem den Herder; Johannes Dercksen; Maria Diaz-Trigo; Michael DiPirro; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan Eckart; Dominique Eckert; Satoshi Eguchi; Teruaki Enoto; Yuichiro Ezoe; Carlo Ferrigno; Yutaka Fujita; Yasushi Fukazawa; Akihiro Furuzawa; Luigi Gallo; Nathalie Gorter; Martin Grim; Liyi Gu; Kouichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; David Hawthorn; Katsuhiro Hayashi; Natalie Hell; Junko Hiraga; Edmund Hodges-Kluck; Takafumi Horiuchi; Ann Hornschemeier; Akio Hoshino; Yuto Ichinohe; Sayuri Iga; Ryo Iizuka; Manabu Ishida; Naoki Ishihama; Kumi Ishikawa; Kosei Ishimura; Tess Jaffe; Jelle Kaastra; Timothy Kallman; Erin Kara; Satoru Katsuda; Steven Kenyon; Mark Kimball; Takao Kitaguti; Shunji Kitamoto; Shogo Kobayashi; Akihide Kobayashi; Takayoshi Kohmura; Aya Kubota; Maurice Leutenegger; Muzi Li; Tom Lockard; Yoshitomo Maeda; Maxim Markevitch; Connor Martz; Hironori Matsumoto; Keiichi Matsuzaki; Dan McCammon; Brian McLaughlin; Brian McNamara; Joseph Miko; Eric Miller; Jon Miller; Kenji Minesugi; Shinji Mitani; Ikuyuki Mitsuishi; Misaki Mizumoto; Tsunefumi Mizuno; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Hideto Nakamura; Kazuhiro Nakazawa; Chikara Natsukari; Kenichiro Nigo; Yusuke Nishioka; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Mina Ogawa; Takaya Ohashi; Masahiro Ohno; Masayuki Ohta; Atsushi Okamoto; Naomi Ota; Masanobu Ozaki; Stephane Paltani; Paul Plucinsky; Katja Pottschmidt; Michael Sampson; Takahiro Sasaki; Kosuke Sato; Rie Sato; Toshiki Sato; Makoto Sawada; Hiromi Seta; Yasuko Shibano; Maki Shida; Megumi Shidatsu; Shuhei Shigeto; Keisuke Shinozaki; Peter Shirron; Aurora Simionescu; Randall Smith; Kazunori Someya; Yang Soong; Keisuke Sugawara; Yasuharu Sugawara; Andy Szymkowiak; Hiromitsu Takahashi; Toshiaki Takeshima; Toru Tamagawa; Keisuke Tamura; Takaaki Tanaka; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Yuusuke Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Jacco Vink; Tomomi Watanabe; Michael Wittheof; Rob Wolfs; Shinya Yamada; Kazutaka Yamaoka; Noriko Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Keiichi Yanagase; Tahir Yaqoob; Susumu Yasuda; Tessei Yoshida; Nasa Yoshioka; Irina Zhuravleva, 13 Dec. 2020, International conference proceedings, 10.1117/12.2565812
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Discovery of recombining plasma associated with the candidate supernova remnant G189.6+3.3 with Suzaku, Shigeo Yamauchi; Moe Oya; Kumiko K Nobukawa; Thomas G Pannuti,
Abstract
We present the results of an X-ray spectral analysis of the northeast region of the candidate supernova remnant G189.6+3.3 with Suzaku. K-shell lines from highly ionized Ne, Mg, Si, and S were detected in the spectrum for the first time. In addition, a radiative recombining continuum (RRC) from He-like Si was clearly seen near 2.5 keV. This detection of an RRC reveals for the first time that G189.6+3.3 possesses an X-ray-emitting recombining plasma (RP). The extracted X-ray spectrum in the 0.6–10.0 keV energy band is well fitted with a model consisting of a collisional ionization equilibrium plasma component (associated with the interstellar medium) and an RP component (associated with the ejecta). The spectral feature shows that G189.6+3.3 is most likely to be a middle-aged SNR with an RP., 02 Oct. 2020, 72, 5, Scientific journal, 10.1093/pasj/psaa070 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), X-ray emission from the mixed-morphology supernova remnant HB 9, Mariko Saito; Shigeo Yamauchi; Kumiko K Nobukawa; Aya Bamba; Thomas G Pannuti,
Abstract
We present the results of a spectral analysis of the central region of the mixed-morphology supernova remnant HB 9. A prior Ginga observation of this source detected a hard X-ray component above 4 keV, and the origin of this particular X-ray component is still unknown. Our results demonstrate that the extracted X-ray spectra are best represented by a model consisting of a collisional ionization equilibrium plasma with a temperature of ∼0.1–0.2 keV (interstellar matter component) and an ionizing plasma with a temperature of ∼0.6–0.7 keV and an ionization timescale of >1 × 1011 cm−3 s (ejecta component). No significant X-ray emission was found in the central region above 4 keV. The recombining plasma model reported by a previous work does not explain our spectra., 01 Aug. 2020, 72, 4, Scientific journal, 10.1093/pasj/psaa042 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Discovery of annular X-ray emission centered on MAXI J1421-613: Dust-scattering X-rays?, Kumiko K Nobukawa; Masayoshi Nobukawa; Shigeo Yamauchi,
Abstract
We report the discovery of an annular emission of $\sim\!\! {3^{\prime } }\!-\!{9^{\prime } }$ radius around the center of a transient source, the X-ray burster MAXI J1421-613, in the Suzaku follow-up analysis. The spectrum of the annular emission shows no significant emission-line structure, and is well explained by an absorbed power-law model with a photon index of $\sim\!\! 4.2$. These features exclude the possibility that the annular emission is a shell-like component of a supernova remnant. The spectral shape, the time history, and the X-ray flux of the annular emission agree with the scenario that the emission is due to a dust-scattering echo. The annular emission is made under a rare condition of the dust-scattering echo, where the central X-ray source, MAXI J1421-613, exhibits a short time outburst with three X-ray bursts and immediately re-enters a long quiescent period. The distribution of the hydrogen column density along the annular emission follows that of the CO intensity, which means that MAXI J1421-613 is located behind the CO cloud. We estimate the distance to MAXI J1421-613 to be $\sim\!\! 3\:$kpc assuming that the dust layer responsible for the annular emission is located at the same position as the CO cloud., 01 Apr. 2020, 72, 2, Scientific journal, 10.1093/pasj/psaa007 - Proceedings of SPIE - The International Society for Optical Engineering, Detail plans and preparations for the science operations of the XRISM mission, Yukikatsu Terada; Matt Holland; Michael Loewenstein; Makoto Tashiro; Hiromitsu Takahashi; Masayoshi Nobukawa; Tsunefumi Mizuno; Takayuki Tamura; Shin'ichiro Uno; Shin Watanabe; Chris Baluta; Laura Burns; Ken Ebisawa; Satoshi Eguchi; Yasushi Fukazawa; Katsuhiro Hayashi; Ryo Iizuka; Satoru Katsuda; Takao Kitaguchi; Aya Kubota; Eric Miller; Koji Mukai; Shinya Nakashima; Kazuhiro Nakazawa; Hirokazu Odaka; Masanori Ohno; Naomi Ota; Rie Sato; Yasuharu Sugawara; Megumi Shidatsu; Tsubasa Tamba; Atsushi Tanimoto; Yuichi Terashima; Yohko Tsuboi; Yuusuke Uchida; Hideki Uchiyama; Shigeo Yamauchi; Tahir Yaqoob, 2020, 11444, International conference proceedings, 10.1117/12.2560861
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Neutral iron line in the supernova remnant IC 443 and implications for MeV cosmic rays, Kumiko K Nobukawa; Arisa Hirayama; Aika Shimaguchi; Yutaka Fujita; Masayoshi Nobukawa; Shigeo Yamauchi,
Abstract
We report a discovery of bright blob-like enhancements of an Fe i K$\alpha$ line in the northwest and the middle of the supernova remnant (SNR) IC 443. The distribution of the line emission is associated with molecular clouds interacting with the shock front, and is totally different from that of the plasma. The Fe i K$\alpha$ line has a large equivalent width. The most plausible scenario for the origin of the line emission is that the MeV protons accelerated in the shell leak into the molecular clouds and ionized the Fe atoms therein. The observed Fe i K$\alpha$ line intensity is consistent with the prediction of a theoretical model in which MeV protons are accelerated along with GeV and TeV protons at the SNR., 01 Dec. 2019, 71, 6, Scientific journal, 10.1093/pasj/psz099 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Characterization of diffuse X-ray emission from IGR J17448$-$3232: an implication of a line-of-sight merging activity, Shoko Watanabe; Shigeo Yamauchi; Kumiko K Nobukawa; Hiroki Akamatsu,
Abstract
The results of spectral analysis for the galaxy cluster IGR J17448$-$3232 are presented. The intracluster medium (ICM) in the central region ($r\lt 300^{\prime \prime }$, $320\:$kpc) has a high electron temperature plasma of $kT_{\rm e} \sim 13$–$15\:$keV, and an ionization temperature estimated from an intensity ratio of Fe xxvi Ly$\alpha /$Fe xxv He$\alpha$ lines is lower than the electron temperature, which suggests that the ICM is in the non-ionization equilibrium (NEI) state. The spectrum in the central region can be also fitted with a two-component model: a two-temperature plasma model in a collisional ionization equilibrium (CIE) with temperatures of $7.9\:$keV and $\gt 34\:$keV, or a CIE$+$power-law model with a temperature of $9.4\:$keV and a photon index of 1.1. The two-component models can represent the intensity ratio of Fe xxvi Ly$\alpha /$Fe xxv He$\alpha$ lines. On the other hand, the spectrum in the outer region ($r\gt 300^{\prime \prime }$) can be explained by a single CIE plasma model with a temperature of 5–$8\:$keV. Based on the spectral feature and its circular structure, we propose that the NEI plasma was produced by merging along the line-of-sight direction., 30 Oct. 2019, 71, Scientific journal, 10.1093/pasj/psz098 - Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), X-ray spectra of Sagittarius A East and diffuse X-ray background near the Galactic center, Akiko Ono; Hideki Uchiyama; Shigeo Yamauchi; Masayoshi Nobukawa; Kumiko K Nobukawa; Katsuji Koyama, 01 Jun. 2019, 71, 3, Scientific journal, 10.1093/pasj/psz025
- Refereed, Journal of Physics: Conf. Series, Measurement of Low-Energy Cosmic Rays via the Neutral Iron Line, Nobukawa; K. K; Saji, S; Hirayama, A; Nobukawa, M; Yamauchi, S; Matsumoto, H; Koyama, K, Feb. 2019, 1181, 012040
- Refereed, Publications of the Astronomical Society of Japan, Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector†, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin’ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin’ichiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi; Yuusuke Uchida, 01 Dec. 2018, 70, 6, Scientific journal, 10.1093/pasj/psy118
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Origin of the low-temperature plasma in the Galactic center X-ray emission, Shigeo Yamauchi; Miku Shimizu; Masayoshi Nobukawa; Kumiko K Nobukawa; Hideki Uchiyama; Katsuji Koyama, 01 Aug. 2018, 70, 4, Scientific journal, 10.1093/pasj/psy077
- Refereed, Publications of the Astronomical Society of Japan, Hitomi X-ray observation of the pulsar wind nebula G21.5−0.9, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin’ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin’ichiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi; Toshiki Sato; Nozomu Nakaniwa; Hiroaki Murakami; Benson Guest, 01 Jun. 2018, 70, 3, Scientific journal, 10.1093/pasj/psy027
- Refereed, Journal of Astronomical Telescopes, Instruments, and Systems, SPIE-Intl Soc Optical Eng, Hitomi (ASTRO-H) X-ray Astronomy Satellite, Tadayuki Takahashi; Motohide Kokubun; Kazuhisa Mitsuda; Richard L. Kelley; Takaya Ohashi; Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W. Allen; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Makoto Asai; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Philipp Azzarello; Chris Baluta; Aya Bamba; Nobutaka Bando; Marshall W. Bautz; Thomas Bialas; Roger Blandford; Kevin Boyce; Laura W. Brenneman; Gregory V. Brown; Esra Bulbul; Edward M. Cackett; Edgar Canavan; Maria Chernyakova, 13 Mar. 2018, 4, 02, 1, 1, Scientific journal, 10.1117/1.jatis.4.2.021402
- Refereed, Publications of the Astronomical Society of Japan, Atmospheric gas dynamics in the Perseus cluster observed with Hitomi*, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Rebecca E A Canning; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Tasuku Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Shota Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin’ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Keigo Tanaka; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin’ichiro Uno; C Megan Urry; Eugenio Ursino; Qian H S Wang; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx138
- Refereed, Publications of the Astronomical Society of Japan, Measurements of resonant scattering in the Perseus Cluster core with Hitomi SXS*, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Maki Furukawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier O Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Anna Ogorzalek; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shiníchiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shiníchiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx127
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Temperature structure in the Perseus cluster core observed with Hitomi*, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Maki Furukawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Yuichi Kato; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shiníchiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shiníchiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psy004
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi*, Hitomi Collaboration, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Natalie Hell; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin’ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin’ichiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi; A J J Raassen, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx156
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-Kα line emission from an active galactic nucleus*, Hitomi Collaboration, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier O Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemitsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin’ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin’ichiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi; Taiki Kawamuro, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx147
- Refereed, Publications of the Astronomical Society of Japan, Search for thermal X-ray features from the Crab nebula with the Hitomi soft X-ray spectrometer*, Hitomi Collaboration, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Toshiki Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin΄ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin΄ichiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi; Nozomu Tominaga; Takashi J Moriya, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx072
- Refereed, Publications of the Astronomical Society of Japan, Hitomi X-ray studies of giant radio pulses from the Crab pulsar, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W. Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W. Bautz; Roger Blandford; Laura W. Brenneman; Gregory V. Brown; Esra Bulbul; Edward M. Cackett; Maria Chernyakova; Meng P. Chiao; Paolo S. Coppi; Elisa Costantini; Jelle De Plaa; Cor P. De Vries; Jan Willem Den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E. Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C. Fabian; Carlo Ferrigno; Adam R. Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C. Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M. Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S. Hiraga; Ann Hornschemeier; Akio Hoshino; John P. Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L. Kelley; Caroline A. Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A. Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; L. E.E. Shiu-Hang; Maurice A. Leutenegger; Olivier O. Limousin; Michael Loewenstein; Knox S. Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R. McNamara; Missagh Mehdipour; Eric D. Miller; Jon M. Miller; Shin Mineshige, 01 Mar. 2018, 70, 2, 15 (18 pages), Scientific journal, 10.1093/pasj/psx083
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Hitomi observations of the LMC SNR N 132 D: Highly redshifted X-ray emission from iron ejecta*, Hitomi Collaboration, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Toshiki Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin’ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin’ichiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx151
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Glimpse of the highly obscured HMXB IGR J16318−4848 with Hitomi*, Hitomi Collaboration; Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W Bautz; Roger Blandford; Laura W Brenneman; Gregory V Brown; Esra Bulbul; Edward M Cackett; Maria Chernyakova; Meng P Chiao; Paolo S Coppi; Elisa Costantini; Jelle de Plaa; Cor P de Vries; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C Fabian; Carlo Ferrigno; Adam R Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S Hiraga; Ann Hornschemeier; Akio Hoshino; John P Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L Kelley; Caroline A Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A Leutenegger; Olivier O Limousin; Michael Loewenstein; Knox S Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R McNamara; Missagh Mehdipour; Eric D Miller; Jon M Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stéphane Paltani; Robert Petre; Ciro Pinto; Frederick S Porter; Katja Pottschmidt; Christopher S Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J Serlemtsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K Smith; Yang Soong; Łukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shiníchiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T Tanaka; Makoto S Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shiníchiro Uno; C Megan Urry; Eugenio Ursino; Shin Watanabe; Norbert Werner; Dan R Wilkins; Brian J Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi; Nozomi Nakaniwa, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx154
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Discovery of 6.4 keV line and soft X-ray emissions from G323.7−1.0 with Suzaku, Shigetaka Saji; Hironori Matsumoto; Masayoshi Nobukawa; Kumiko K Nobukawa; Hideki Uchiyama; Shigeo Yamauchi; Katsuji Koyama, 01 Mar. 2018, 70, 2, Scientific journal, 10.1093/pasj/psx158
- Refereed, Astrophysical Journal, Institute of Physics Publishing, Evidence for a Neutral Iron Line Generated by MeV Protons from Supernova Remnants Interacting with Molecular Clouds, Kumiko K. Nobukawa; Masayoshi Nobukawa; Katsuji Koyama; Shigeo Yamauchi; Hideki Uchiyama; Hiromichi Okon; Takaaki Tanaka; Hiroyuki Uchida; Takeshi G. Tsuru, 20 Feb. 2018, 854, 2, 87 (10 pages), Scientific journal, 10.3847/1538-4357/aaa8dc
- JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS, Supermirror design for Hard X-Ray Telescopes on-board Hitomi (ASTRO-H), Keisuke Tamura; Hideyo Kunieda; Yusuke Miyata; Takashi Okajima; Takuya Miyazawa; Akihiro Furuzawa; Hisamitsu Awaki; Yoshito Haba; Kazunori Ishibashi; Manabu Ishida; Yoshitomo Maeda; Hideyuki Mori; Yuzuru Tawara; Shigeo Yamauchi; Kentaro Uesugi; Yoshio Suzuki, Jan. 2018, 4, 1, Scientific journal, 10.1117/1.JATIS.4.1.011209
- Refereed, Journal of Astronomical Telescopes, Instruments, and Systems, SPIE, Inorbit performance of the Hard X-ray Telescope (HXT) on board the Hitomi (ASTRO-H) satellite, Hironori Matsumoto; Hisamitsu Awaki; Manabu Ishida; Akihiro Furuzawa; Shigeo Yamauchi; Yoshitomo Maeda; Ikuyuki Mitsuishi; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Masayuki Itoh; Hideyo Kunieda; Takuya Miyazawa; Hideyuki Mori; Takashi Okajima; Satoshi Sugita; Keisuke Tamura; Yuzuru Tawara, 01 Jan. 2018, 4, 1, 011209, Scientific journal, 10.1117/1.JATIS.4.1.011212
- Refereed, Journal of Astronomical Telescopes, Instruments, and Systems, On-ground calibration of the Hitomi Hard X-ray Telescopes, Hideyuki Mori; Takuya Miyazawa; Hisamitsu Awaki; Hironori Matsumoto; Yasunori Babazaki; Ayako Bandai; Tadatsugu Demoto; Akihiro Furuzawa; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Manabu Ishida; Naoki Ishida; Masayuki Itoh; Toshihiro Iwase; Hiroyoshi Kato; Hiroaki Kobayashi; Tatsuro Kosaka; Hideyo Kunieda; Shou Kurashima; Daichi Kurihara; Yuuji Kuroda; Yoshitomo Maeda; Yoshifumi Meshino; Ikuyuki Mitsuishi; Yuusuke Miyata; Housei Nagano; Yoshiharu Namba; Yasushi Ogasaka; Keiji Ogi; Takashi Okajima; Shigetaka Saji; Fumiya Shimasaki; Takuro Sato; Toshiki Sato; Naotsugu Shima; Satoshi Sugita; Yoshio Suzuki; Kenji Tachibana; Sasagu Tachibana; Shun'Ya Takizawa; Keisuke Tamura; Yuzuru Tawara; Kazuki Tomikawa; Tatsuharu Torii; Kentaro Uesugi; Koujun Yamashita; Shigeo Yamauchi, 01 Jan. 2018, 4, 1, 011210, Scientific journal, 10.1117/1.JATIS.4.1.011210
- Refereed, Journal of Astronomical Telescopes, Instruments, and Systems, SPIE, Inorbit performance of the Hard X-ray Telescope (HXT) on board the Hitomi (ASTRO-H) satellite, Hironori Matsumoto; Hisamitsu Awaki; Manabu Ishida; Akihiro Furuzawa; Shigeo Yamauchi; Yoshitomo Maeda; Ikuyuki Mitsuishi; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Masayuki Itoh; Hideyo Kunieda; Takuya Miyazawa; Hideyuki Mori; Takashi Okajima; Satoshi Sugita; Keisuke Tamura; Yuzuru Tawara, 01 Jan. 2018, 4, 1, 011212, Scientific journal, 10.1117/1.JATIS.4.1.011212
- Refereed, NATURE, Solar abundance ratios of the iron-peak elements in the Perseus cluster, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W. Allen; Lorella Angelini; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall W. Bautz; Roger Blandford; Laura W. Brenneman; Gregory V. Brown; Esra Bulbul; Edward M. Cackett; Maria Chernyakova; Meng P. Chiao; Paolo S. Coppi; Elisa Costantini; Jelle De Plaa; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan E. Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C. Fabian; Carlo Ferrigno; Adam R. Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi C. Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana M. Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko S. Hiraga; Ann Hornschemeier; Akio Hoshino; John P. Hughes; Yuto Ichinohe; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masachika Iwai; Jelle Kaastra; Tim Kallman; Tsuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Nobuyuki Kawai; Richard L. Kelley; Caroline A. Kilbourne; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Katsuji Koyama; Shu Koyama; Peter Kretschmar; Hans A. Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Shiu-Hang Lee; Maurice A. Leutenegger; Olivier Limousine; Michael Loewenstein; Knox S. Long; David Lumb; Greg Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian R. McNamara; Missagh Mehdipour; Eric D. Miller; Jon M. Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Koji Mukai; Hiroshi Murakami; Richard F. Mushotzky; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Shinya Nakashima; Kazuhiro Nakazawa; Kumiko K. Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; StPhane Paltani; Robert Petre; Ciro Pinto; Frederick S. Porter; Katja Pottschmidt; Christopher S. Reynolds; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Toru Sasaki; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter J. Serlemitsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall K. Smith; Yang Soong; Lukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin'ichiro Takeda; Yoh Takei; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki T. Tanaka; Makoto S. Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Go Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shin'ichiro Uno; C. Megan Urry; Eugenio Ursino; Cor P. de Vries; Shin Watanabe; Norbert Werner; Daniel R. Wik; Dan R. Wilkins; Brian J. Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y. Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Irina Zhuravleva; Abderahmen Zoghbi, Nov. 2017, 551, 7681, 478, +, Scientific journal, 10.1038/nature24301
- Refereed, ASTROPHYSICAL JOURNAL LETTERS, Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster, F. A. Aharonian; H. Akamatsu; F. Akimoto; S. W. Allen; L. Angelini; K. A. Arnaud; M. Audard; H. Awaki; M. Axelsson; A. Bamba; M. W. Bautz; R. D. Blandford; E. Bulbul; L. W. Brenneman; G. V. Brown; E. M. Cackett; M. Chernyakova; M. P. Chiao; P. Coppi; E. Costantini; J. de Plaa; J. -W. den Herder; C. Done; T. Dotani; K. Ebisawa; M. E. Eckart; T. Enoto; Y. Ezoe; A. C. Fabian; C. Ferrigno; A. R. Foster; R. Fujimoto; Y. Fukazawa; A. Furuzawa; M. Galeazzi; L. C. Gallo; P. Gandhi; M. Giustini; A. Goldwurm; L. Gu; M. Guainazzi; Y. Haba; K. Hagino; K. Hamaguchi; I. Harrus; I. Hatsukade; K. Hayashi; T. Hayashi; K. Hayashida; J. Hiraga; A. E. Hornschemeier; A. Hoshino; J. P. Hughes; Y. Ichinohe; R. Iizuka; H. Inoue; S. Inoue; Y. Inoue; K. Ishibashi; M. Ishida; K. Ishikawa; Y. Ishisaki; M. Itoh; M. Iwai; N. Iyomoto; J. S. Kaastra; T. Kallman; T. Kamae; E. Kara; J. Kataoka; S. Katsuda; J. Katsuta; M. Kawaharada; N. Kawai; R. L. Kelley; D. Khangulyan; C. A. Kilbourne; A. L. King; T. Kitaguchi; S. Kitamoto; T. Kitayama; T. Kohmura; M. Kokubun; S. Koyama; K. Koyama; P. Kretschmar; H. A. Krimm; A. Kubota; H. Kunieda; P. Laurent; F. Lebrun; S. -H. Lee; M. A. Leutenegger; O. Limousin; M. Loewenstein; K. S. Long; D. H. Lumb; G. M. Madejski; Y. Maeda; D. Maier; K. Makishima; M. Markevitch; H. Matsumoto; K. Matsushita; D. McCammon; B. R. McNamara; M. Mehdipour; E. D. Miller; J. M. Miller; S. Mineshige; K. Mitsuda; I. Mitsuishi; T. Miyazawa; T. Mizuno; H. Mori; K. Mori; H. Moseley; K. Mukai; H. Murakami; T. Murakami; R. F. Mushotzky; T. Nakagawa; H. Nakajima; T. Nakamori; T. Nakano; S. Nakashima; K. Nakazawa; K. Nobukawa; M. Nobukawa; H. Noda; M. Nomachi; S. L. O'Dell; H. Odaka; T. Ohashi; M. Ohno; T. Okajima; N. Ota; M. Ozaki; F. Paerels; S. Paltani; A. Parmar; R. Petre; C. Pinto; M. Pohl; F. S. Porter; K. Pottschmidt; B. D. Ramsey; C. S. Reynolds; H. R. Russell; S. Safi-Harb; S. Saito; K. Sakai; H. Sameshima; T. Sasaki; G. Sato; K. Sato; R. Sato; M. Sawada; N. Schartel; P. J. Serlemitsos; H. Seta; M. Shidatsu; A. Simionescu; R. K. Smith; Y. Soong; L. Stawarz; Y. Sugawara; S. Sugita; A. E. Szymkowiak; H. Tajima; H. Takahashi; T. Takahashi; S. Takeda; Y. Takei; T. Tamagawa; K. Tamura; T. Tamura; T. Tanaka; Yasuo Tanaka; Yasuyuki Tanaka; M. Tashiro; Y. Tawara; Y. Terada; Y. Terashima; F. Tombesi; H. Tomida; Y. Tsuboi; M. Tsujimoto; H. Tsunemi; T. Tsuru; H. Uchida; H. Uchiyama; Y. Uchiyama; S. Ueda; Y. Ueda; S. Ueno; S. Uno; C. M. Urry; E. Ursino; C. P. de Vries; S. Watanabe; N. Werner; D. R. Wik; D. R. Wilkins; B. J. Williams; S. Yamada; H. Yamaguchi; K. Yamaoka; N. Y. Yamasaki; M. Yamauchi; S. Yamauchi; T. Yaqoob; Y. Yatsu; D. Yonetoku; A. Yoshida; I. Zhuravleva; A. Zoghbi, Mar. 2017, 837, 1, L15 (9 pages), Scientific journal, 10.3847/2041-8213/aa61fa
- Not Refereed, OPTICS FOR EUV, X-RAY, AND GAMMA-RAY ASTRONOMY VIII, The Hitomi (ASTRO-H) Hard X-ray Telescope (HXT) : current status of calibration, Hisamitsu Awaki; Hironori Matsumoto; Manabu Ishida; Akihiro Furuzawa; Shigeo Yamauchi; Yoshitomo Maeda; Hideyo Kunieda; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Ikuyuki Mitsuishi; Takuya Miyazawa; Hideyuki Mori; Takashi Okajima; Satoshi Sugita; Keisuke Tamura; Yuzuru Tawara; Tessei Yoshida, 2017, 10399, id. 103990R, International conference proceedings, 10.1117/12.2272844
- Refereed, ASTROPHYSICAL JOURNAL, ORIGIN OF THE GALACTIC DIFFUSE X-RAY EMISSION: IRON K-SHELL LINE DIAGNOSTICS, Masayoshi Nobukawa; Hideki Uchiyama; Kumiko K. Nobukawa; Shigeo Yamauchi; Katsuji Koyama, Dec. 2016, 833, 2, 268 (10 pages), Scientific journal, 10.3847/1538-4357/833/2/268
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Scale heights and equivalent widths of the iron K-shell lines in the Galactic diffuse X-ray emission, Shigeo Yamauchi; Kumiko K. Nobukawa; Masayoshi Nobukawa; Hideki Uchiyama; Katsuji Koyama, Aug. 2016, 68, 4, 59 (13 pages), Scientific journal, 10.1093/pasj/psw057
- Refereed, NATURE, The quiescent intracluster medium in the core of the Perseus cluster, Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steven W. Allen; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Aya Bamba; Marshall Bautz; Roger Blandford; Laura Brenneman; Gregory V. Brown; Esra Bulbul; Edward Cackett; Maria Chernyakova; Meng Chiao; Paolo Coppi; Elisa Costantini; Jelle de Plaa; Jan-Willem den Herder; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew C. Fabian; Carlo Ferrigno; Adam Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi Gallo; Poshak Gandhi; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Ilana Harrus; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko Hiraga; Ann Hornschemeier; Akio Hoshino; John Hughes; Ryo Iizuka; Hajime Inoue; Yoshiyuki Inoue; Kazunori Ishibashi; Manabu Ishida; Kumi Ishikawa; Yoshitaka Ishisaki; Masayuki Itoh; Naoko Iyomoto; Jelle Kaastra; Timothy Kallman; Tuneyoshi Kamae; Erin Kara; Jun Kataoka; Satoru Katsuda; Junichiro Katsuta; Madoka Kawaharada; Nobuyuki Kawai; Richard Kelley; Dmitry Khangulyan; Caroline Kilbourne; Ashley King; Takao Kitaguchi; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Shu Koyama; Katsuji Koyama; Peter Kretschmar; Hans Krimm; Aya Kubota; Hideyo Kunieda; Philippe Laurent; Francois Lebrun; Shiu-Hang Lee; Maurice Leutenegger; Olivier Limousin; Michael Loewenstein; Knox S. Long; David Lumb; Grzegorz Madejski; Yoshitomo Maeda; Daniel Maier; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Brian McNamara; Missagh Mehdipour; Eric Miller; Jon Miller; Shin Mineshige; Kazuhisa Mitsuda; Ikuyuki Mitsuishi; Takuya Miyazawa; Tsunefumi Mizuno; Hideyuki Mori; Koji Mori; Harvey Moseley; Koji Mukai; Hiroshi Murakami; Toshio Murakami; Richard Mushotzky; Ryo Nagino; Takao Nakagawa; Hiroshi Nakajima; Takeshi Nakamori; Toshio Nakano; Shinya Nakashima; Kazuhiro Nakazawa; Masayoshi Nobukawa; Hirofumi Noda; Masaharu Nomachi; Steve O'Dell; Hirokazu Odaka; Takaya Ohashi; Masanori Ohno; Takashi Okajima; Naomi Ota; Masanobu Ozaki; Frits Paerels; Stephane Paltani; Arvind Parmar; Robert Petre; Ciro Pinto; Martin Pohl; F. Scott Porter; Katja Pottschmidt; Brian Ramsey; Christopher Reynolds; Helen Russell; Samar Safi-Harb; Shinya Saito; Kazuhiro Sakai; Hiroaki Sameshima; Goro Sato; Kosuke Sato; Rie Sato; Makoto Sawada; Norbert Schartel; Peter Serlemitsos; Hiromi Seta; Megumi Shidatsu; Aurora Simionescu; Randall Smith; Yang Soong; Lukasz Stawarz; Yasuharu Sugawara; Satoshi Sugita; Andrew Szymkowiak; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Shin'ichiro Takeda; Yoh Takei; Toru Tamagawa; Keisuke Tamura; Takayuki Tamura; Takaaki Tanaka; Yasuo Tanaka; Yasuyuki Tanaka; Makoto Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Francesco Tombesi; Hiroshi Tomida; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yasunobu Uchiyama; Shutaro Ueda; Yoshihiro Ueda; Shiro Ueno; Shin'ichiro Uno; Meg Urry; Eugenio Ursino; Cor De Vries; Shin Watanabe; Norbert Werner; Daniel Wik; Dan Wilkins; Brian Williams; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Y. Yamasaki; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Yoichi Yatsu; Daisuke Yonetoku; Atsumasa Yoshida; Takayuki Yuasa; Irina Zhuravleva; Abderahmen Zoghbi, Jul. 2016, 535, 7610, 117, +, Scientific journal, 10.1038/nature18627
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Suzaku observations of two diffuse hard X-ray source regions, G22.0+0.0 and G23.5+0.1, Shigeo Yamauchi; Mayu Sumita; Aya Bamba, Jun. 2016, 68, SP1, S6 (10 pages), Scientific journal, 10.1093/pasj/psv109
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Iron emission line from the spiral galaxy M101, Shigeo Yamauchi, Jun. 2016, 68, SP1, S18 (9 pages), Scientific journal, 10.1093/pasj/psv107
- Not Refereed, eprint arXiv 1412.1170, eprint arXiv, ASTRO-H White Paper - Plasma Diagnostic and Dynamics of the Galactic Center Region, Koyama, K; Kataoka, J; Nobukawa, M; Uchiyama, H; Nakashima, S; Aharonian, F; Chernyakova, M; Ichinohe, Y; Nobukawa, K. K; Maeda, Y; Matsumoto, H; Murakami, H; Ricci, C; Stawarz, L; Tanaka, T; Tsuru, T. G; Watanabe, S; Yamauchi, S; Yuasa, T; for the ASTRO-H; Science Working Group, 01 Dec. 2014, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray filament with a strong 6.7-keV line in the Galactic center region, Shigeo Yamauchi; Miku Shimizu; Shinya Nakashima; Masayoshi Noaukawa; Takeshi Go Tsuru; Katsuji Koyama, Dec. 2014, 66, 6, 125 (6 pages), Scientific journal, 10.1093/pasj/psu122
- Refereed, Applied Optics, Hard x-ray telescopes to be onboard ASTRO-H, Hisamitsu Awaki; Hideyo Kunieda; Manabu Ishida; Hironori Matsumoto; Yasunori Babazaki; Tadatsugu Demoto; Akihiro Furuzawa; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Naoki Ishida; Masayuki Itoh; Toshihiro Iwase; Tatsuro Kosaka; Daichi Kurihara; Yuuji Kuroda; Yoshitomo Maeda; Yoshifumi Meshino; Ikuyuki Mitsuishi; Yuusuke Miyata; Takuya Miyazawa; Hideyuki Mori; Housei Nagano; Yoshiharu Namba; Yasushi Ogasaka; Keiji Ogi; Takashi Okajima; Shigetaka Saji; Fumiya Shimasaki; Takuro Sato; Toshiki Sato; Satoshi Sugita; Yoshio Suzuki; Kenji Tachibana; Sasagu Tachibana; Shunya Takizawa; Keisuke Tamura; Yuzuru Tawara; Tatsuharu Torii; Kentato Uesugi; Koujun Yamashita; Shigeo Yamauchi, 10 Nov. 2014, 53, 32, 7664, 7676, Scientific journal, 10.1364/AO.53.007664
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Thermal and non-thermal X-rays from the Galactic supernova remnant G348.5+0.1, Shigeo Yamauchi; Sari Minami; Naomi Ota; Katsuji Koyama, Feb. 2014, 66, 1, 2 (7 pages), Scientific journal, 10.1093/pasj/pst004
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray emission from the galactic supernova remnant G12.0-0.1, Shigeo Yamauchi; Aya Bamba; Katsuji Koyama, Feb. 2014, 66, 1, 20 (8 pages), Scientific journal, 10.1093/pasj/pst021
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-Ray Observation of the Galactic Supernova Remnant G355.6-0.0 with Suzaku, Sari Minami; Naomi Ota; Shigeo Yamauchi; Katsuji Koyama, Oct. 2013, 65, 5, 99 (7 pages), Scientific journal, 10.1093/pasj/65.5.99
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Evidence for Recombining Plasma in the Supernova Remnant G346.6-0.2, Shigeo Yamauchi; Masayoshi Nobukawa; Katsuji Koyama; Manami Yonemori, Feb. 2013, 65, 1, 6 (7 pages), Scientific journal, 10.1093/pasj/65.1.6
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A New Candidate of an X-Ray Luminous Cluster of Galaxies behind the Galactic Plane, Shigeo Yamauchi; Aya Bamba; Katsuji Koyama, Nov. 2011, 63, S957, S961, Scientific journal, 10.1093/pasj/63.sp3.S957
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Suzaku Observation of the Anomalous X-Ray Pulsar 1E 1841-045, Mikio Morii; Shunji Ktamoto; Noriaki Shibazaki; Nobuyuki Kawai; Makoto Arimoto; Masaru Ueno; Takayoshi Kohmura; Yukikatsu Terada; Shigeo Yamauchi; Hiromitsu Takahashi, Oct. 2010, 62, 5, 1249, 1259, Scientific journal, 10.1093/pasj/62.5.1249
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A New Candidate of a Cluster of Galaxies, 2XMM J045637.2+522411, Shigeo Yamauchi; Masaru Ueno; Aya Bamba; Katsuji Koyama, Apr. 2010, 62, 2, 219, 224, Scientific journal, 10.1093/pasj/62.2.219
- Refereed, ASTROPHYSICAL JOURNAL LETTERS, DOPPLER-BROADENED IRON X-RAY LINES FROM TYCHO'S SUPERNOVA REMNANT, Akihiro Furuzawa; Daisuke Ueno; Asami Hayato; Midori Ozawa; Toru Tamagawa; Aya Bamba; John P. Hughes; Hideyo Kunieda; Kazuo Makishima; Stephen S. Holt; Una Hwang; Kenzo Kinugasa; Robert Petre; Keisuke Tamura; Hiroshi Tsunemi; Shigeo Yamauchi, Mar. 2009, 693, 2, L61, L65, Scientific journal, 10.1088/0004-637X/693/2/L61
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A New Supernova Remnant Candidate and an Associated Outflow in the Sagittarius C Region, Takeshi Go Tsuru; Masayoshi Nobukawa; Hiroshi Nakajima; Hironori Matsumoto; Katsuji Koyama; Shigeo Yamauchi, Jan. 2009, 61, S219, S223, Scientific journal, 10.1093/pasj/61.sp1.S219
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Iron Emission Lines on the Galactic Ridge Observed with Suzaku, Shigeo Yamauchi; Ken Ebisawa; Yasuo Tanaka; Katsuji Koyama; Hironori Matsumoto; Noriko Y. Yamasaki; Hiromitsu Takahashi; Yuichiro Ezo, Jan. 2009, 61, S225, S232, Scientific journal, 10.1093/pasj/61.sp1.S225
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-Ray Reflection Nebulae with Large Equivalent Widths of the Neutral Iron K alpha Line in the Sagittarius C Region, Hiroshi Nakajima; Takeshi Go Tsuru; Masayoshi Nobukawa; Hironori Matsumoto; Katsuji Koyama; Hiroshi Murakami; Atsushi Senda, Jan. 2009, 61, S233, S240, Scientific journal, 10.1093/pasj/61.sp1.S233
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-Ray Emission from Supernova Remnants Observed in the ASCA Galactic Plane Survey, Shigeo Yamauchi; Masaru Ueno; Katsuji Koyama; Aya Bamba, Oct. 2008, 60, 5, 1143, 1150, Scientific journal, 10.1093/pasj/60.5.1143
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Suzaku detection of an intense X-ray flare from an A-type star, HD 161084, Junichiro Miura; Masahiro Tsujimoto; Yohko Tsuboi; Yoshitomo Maeda; Yasuharu Sugawara; Katsuji Koyama; Shigeo Yamauchi, Feb. 2008, 60, S49, S56, Scientific journal, 10.1093/pasj/60.sp1.S49
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Suzaku spectroscopy of an X-ray reflection nebula and a new supernova remnant candidate in the Sgr B1 region, Masayoshi Nobukawa; Takeshi Go Tsuru; Yojiro Takikawa; Yoshiaki Hyodo; Tatsuya Inui; Hiroshi Nakajima; Hironori Matsumoto; Katsuji Koyama; Hiroshi Murakami; Shigeo Yamauchi, Feb. 2008, 60, S191, S199, Scientific journal, 10.1093/pasj/60.sp1.S191
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Suzaku detection of extended/diffuse hard X-ray emission from the galactic center, Takayuki Yuasa; Ken-Ichi Tamura; Kazuhiro Nakazawa; Motohide Kokubun; Kazuo Makishima; Aya Bamba; Yoshitomo Maeda; Tadayuki Takahashi; Ken Ebisawa; Atsushi Senda; Yoshiaki Hyd; Takeshi Go Tsuru; Katsuji Koyama; Shigeo Yamauchi; Hiromitsu Takahashi, Feb. 2008, 60, S207, S221, Scientific journal, 10.1093/pasj/60.sp1.S207
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Spectral study of the galactic ridge X-ray emission with Suzaku, Ken Ebisawa; Shigeo Yamauchi; Yasuo Tanaka; Katsuji Koyama; Yuichiro Ezoe; Aya Bamba; Motohide Kokubun; Yoshiaki Hyodo; Masahiro Tsujimoto; Hiromitsu Takahashi, Feb. 2008, 60, S223, S229, Scientific journal, 10.1093/pasj/60.sp1.S223
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A bright transient X-ray source near the galactic center found in archival Ginga data from 1987, Shigeo Yamauchi; Yoshio Nakagawa; Keisuke Sudoh; Shunji Kitamoto, Dec. 2007, 59, 6, 1141, 1151, Scientific journal, 10.1093/pasj/59.6.1141
- Refereed, 2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11, In-flight status of the X-ray observatory Suzaku, T. Dotani; K. Mitsuda; M. Bautz; H. Inoue; R. L. Kelley; K. Koyama; H. Kunieda; K. Makishima; Y. Ogawara; R. Petre; T. Takahashi; H. Tsunemi; N. E. White; N. Anabuki; L. Angelini; K. Arnaud; H. Awaki; A. Bamba; K. Boyce; G. V. Brown; K. -W. Chan; J. Cottam; J. Doty; K. Ebisawa; Y. Ezoe; A. C. Fabian; E. Figueroa; R. Fujimoto; Y. Fukazawa; T. Furusho; A. Furuzawa; K. Gendreau; R. E. Griffiths; Y. Haba; K. Hamaguchi; l. Harrus; G. Hasinger; I. Hatsukade; K. Hayashida; P. J. Henry; J. S. Hiraga; S. S. Holt; A. Hornschemeier; J. P. Hughes; U. Hwang; M. Ishida; Y. Ishisaki; N. Isobe; M. Itoh; N. Iyomoto; S. M. Kahn; T. Kamae; H. Katagiri; J. Kataoka; H. Katayama; N. Kawai; M. Kawaharada; C. Kilbourne; K. Kinugasa; S. Kissel; S. Kitamoto; M. Kohama; T. Kohmura; M. Kokubun; T. Kotani; J. Kotoku; A. Kubota; G. M. Madejski; Y. Maeda; F. Makino; A. Markowitz; C. Matsumoto; H. Matsumoto; M. Matsuoka; K. Matsushita; D. McCammon; T. Mihara; K. Misaki; E. Miyata; T. Mizuno; K. Mori; H. Mori; M. Morii; H. Moseley; K. Mukai; H. Murakami; T. Murakami; R. Mushotzky; F. Nagase; M. Namiki; H. Negoro; K. Nakazawa; J. A. Nousek; T. Okajima; Y. Ogasaka; T. Ohashi; T. Oshima; N. Ota; M. Ozaki; H. Ozawa; A. N. Parmar; W. D. Pence; F. Scott Porter; J. N. Reeves; G. R. Ricker; L. Sakurai; W. T. Sanders; A. Senda; P. Serlemitsos; R. Shibata; K. Shinozaki; Y. Soong; R. Smith; M. Suzuki; A. E. Szymkowiak; H. Takahashi; Y. Takei; T. Tamagawa; K. Tamura; T. Tamura; Y. Tanaka; M. Tashiro; Y. Tawara; Y. Terada; Y. Terashima; H. Tomida; K. Torii; Y. Tsuboi; Y. Tsujimoto; T. Tsuru; M. J. L. Turner; Y. Uchiyama; Y. Ueda; S. Ueno; M. Ueno; S. Uno; Y. Urata; S. Watanabe; N. Yamamoto; K. Yamaoka; N. Y. Yamasaki; K. Yamashita; M. Yamauchi; S. Yajmauchi; T. Yaqoob; D. Yonetoku; A. Yoshida, 2007, 2526, +, International conference proceedings
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, The X-ray observatory Suzaku, Kazuhisa Mitsuda; Mark Bautz; Hajime Inoue; Richard L. Kelley; Katsuji Koyama; Hideyo Kunieda; Kazuo Makshima; Yoshiaki Ogawara; Robert Petre; Tadayuki Takahashi; Hiroshi Tsunemi; Nicholas E. White; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Hisamitsu Awaki; Aya Bamba; Kevin Boyce; Gregory V. Brown; Kai-Wing Chan; Jean Cottam; Tadayasu Dotanli; John Doty; Ken Ebisawa; Yuichiro Ezoe; Andrew C. Fabian; Enectali Figueroa; Ryuichi Fujimoto; Yasushi Fukazawa; Tae Furusho; Akihiro Furuzawa; Keith Gendreau; Richard E. Griffiths; Yoshito Haba; Kenji Hamaguchi; Ilana Harrus; Gunther Hasinger; Isamu Hatsukade; Kiyoshi Hayashida; Patrick J. Henry; Junko S. Hiraga; Stephen S. Holt; Ann Hornschemeier; John P. Hughes; Una Hwang; Manabu Ishida; Yoshitaka Ishisaki; Naoki Isobe; Masayuki Itoh; Naoko Iyomoto; Steven M. Kahn; Tuneyoshi Kamae; Hideaki Katagiri; Jun Kataoka; Haruyoshi Katayama; Nobuyuki Kawai; Caroline Kilbourne; Kenzo Kinugasa; Steve Kissel; Shunji Kitamoto; Mitsuhiro Kohama; Takayoshi Kohmura; Motohide Kokubun; Taro Kotani; Jun'ichi Kotoku; Aya Kubota; Greg M. Madejski; Yoshitomo Maeda; Fumiyoshi Makino; Alex Markowitz; Chiho Matsumoto; Hironori Matsumoto; Masaru Matsuoka; Kyoko Matsushita; Dan McCammon; Tatehiko Mihara; Kazutami Misaki; Emi Miyata; Tsunefumi Mizuno; Koji Mori; Hideyuki Mori; Mikio Morii; Harvey Moseley; Koji Mukai; Hiroshi Murakami; Toshio Murakami; Richard Mushotzky; Fumiaki Nagase; Masaaki Namiki; Hitoshi Negoro; Kazubiro Nakazawa; John A. Nousek; Takashi Okajima; Yasushi Ogasaka; Takaya Ohashi; Tai Oshima; Naomi Ota; Masanobu Ozaki; Hideki Ozawa; Arvind N. Parmar; William D. Pence; F. Scott Porter; James N. Reeves; George R. Ricker; Ikuya Sakurai; Wilton T. Sanders; Atsushi Senda; Peter Serlemitsos; Ryo Shibata; Yang Soong; Randall Smith; Motoko Suzuki; Andrew E. Szymkowiak; Hiromitsu Takahashi; Torn Tamagawa; Keisuke Tamura; Takayuki Tamura; Yasuo Tanaka; Makoto Tashiro; Yuzuru Tawara; Yukikatsu Terada; Yuichi Terashima; Hiroshi Tomida; Ken'ichi Torii; Yohko Tsuboi; Masahiro Tsujimoto; Takeshi Go Tsuru; Martin J. L. Turner; Yoshihiro Ueda; Shiro Ueno; Masaru Ueno; Shin'ichiro Uno; Yuji Urata; Shin Watanabe; Norimasa Yamamoto; Kazutaka Yamaoka; Noriko Y. Yamasaki; Koujun Yamashita; Makoto Yamauchi; Shigeo Yamauchi; Tahir Yaqoob; Daisuke Yonetoku; Atsumasa Yoshida, Jan. 2007, 59, S1, S7, Scientific journal, 10.1093/pasj/59.sp1.S1
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Suzaku observations of HESS J1616-508: Evidence for a dark particle accelerator, Hironori Matsumoto; Masaru Ueno; Aya Bamba; Yoshiaki Hyodo; Hideyuki Mori; Hideki Uchiyama; Takeshi Go Tsuru; Katsuji Koyama; Jun Kataoka; Hideaki Katagiri; Tadayuki Takahashi; Junko Hiraga; Shigeo Yamauchi; John P. Hughes; Atsushi Senda; Motohide Kokubun; Takayoshi Kohmura; Frederick S. Porter, Jan. 2007, 59, S199, S208, Scientific journal, 10.1093/pasj/59.sp1.S199
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of a possible X-ray counterpart to HESS J1804-216, Aya Bamba; Katsuji Koyama; Junko S. Hiraga; John P. Hughes; Takayoshi Kohmura; Motohide Kokubun; Yoshitomo Maeda; Hironori Matsumoto; Atsushi Senda; Tadayuki Takahashi; Yohko Tsuboi; Shigeo Yamauchi; Takayuki Yuasa, Jan. 2007, 59, S209, S214, Scientific journal, 10.1093/pasj/59.sp1.S209
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of a new X-ray transient source in the Scutum region with Suzaku, Shigeo Yamauchi; Ken Ebisawa; Aya Bamba; Manabu Ishida; Kazushi Iwasawa; Yasuo Tanaka; Motohide Kokubun; Katsuji Koyama; Hiromitsu Takahashi; Yohko Tsuboi, Jan. 2007, 59, S215, S220, Scientific journal, 10.1093/pasj/59.sp1.S215
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discoveries of diffuse iron line sources from the Sgr B region, Katsuji Koyama; Tatsuya Inui; Yoshiaki Hyodo; Hironori Matsumoto; Takeshi Go Tsuru; Yoshitomo Maeda; Hiroshi Murakami; Shigeo Yamauchi; Steven E. Kissel; Kai-Wing Chan; Yang Soong, Jan. 2007, 59, S221, S227, Scientific journal, 10.1093/pasj/59.sp1.S221
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Iron and nickel line diagnostics for the Galactic Center diffuse emission, Katsuji Koyama; Yoshiaki Hyodo; Tatsuya Inui; Hiroshi Nakajima; Hironori Matsumoto; Takeshi Go Tsuru; Tadayuki Takahashi; Yoshitomo Maeda; Noriko Y. Yamazaki; Hiroshi Murakami; Shigeo Yamauchi; Yohko Tsuboi; Atsushi Senda; Jun Kataoka; Hiromitsu Takahashi; Stephen S. Holt; Gregory V. Brown, Jan. 2007, 59, S245, S255, Scientific journal, 10.1093/pasj/59.sp1.S245
- Refereed, ASTROPHYSICAL JOURNAL, Chandra deep X-ray observation of a typical galactic plane region and near-infrared identification, K Ebisawa; M Tsujimoto; A Paizis; K Hamaguchi; A Bamba; R Cutri; H Kaneda; Y Maeda; G Sato; A Senda; M Ueno; S Yamauchi; Beckmann, V; TJL Courvoisier; P Dubath; E Nishihara, Dec. 2005, 635, 1, 214, 242, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray emission from a supernova remnant, G344.7-0.1, observed in the ASCA Galactic Plane Survey, S Yamauchi; M Ueno; K Koyama; A Bamba, Jun. 2005, 57, 3, 459, 463, Scientific journal, 10.1093/pasj/57.3.459
- Refereed, ASTROPHYSICAL JOURNAL, X-ray study of Herbig Ae/Be stars, K Hamaguchi; S Yamauchi; K Koyama, Jan. 2005, 618, 1, 360, 384
- Refereed, Publications of the Astronomical Society of Japan, Oxford University Press, An ultrasoft transient X-ray source in the norma region discovered with ginga, Shigeo Yamauchi, 2005, 57, 3, 465, 469, 10.1093/pasj/57.3.465
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, XMM-Newton observations of G32.45+0.1 and G38.55+0.0: Diffuse hard X-ray sources found by the ASCA Galactic Plane Survey, H Yamaguchi; M Ueno; K Koyama; A Bamba, Dec. 2004, 56, 6, 1059, 1065, Scientific journal, 10.1093/pasj/56.6.1059
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, An ultrasoft transient X-ray source near the Galactic bulge region, S Yamauchi; E Nakamura, Oct. 2004, 56, 5, 803, 808, Scientific journal, 10.1093/pasj/56.5.803
- Refereed, ASTROPHYSICAL JOURNAL, Diffuse hard X-ray sources discovered with the ASCA Galactic plane survey, A Bamba; M Ueno; K Koyama; S Yamauchi, May 2003, 589, 1, 253, 260, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, Galactic X-ray surveys, K Ebisawa; S Yamauchi; A Bamba; M Ueno; A Senda, 2003, 324, 1-2, 52, 56, Scientific journal, 10.1002/asna.200310014
- Refereed, ASTRONOMISCHE NACHRICHTEN, Search for synchrotron X-ray dominated SNRs in the ASCA galactic plane survey, A Bamba; M Ueno; K Koyama; S Yamauchi; K Ebisawa, 2003, 324, 1-2, 139, 139, Scientific journal, 10.1002/asna.200310038
- Refereed, ASTRONOMISCHE NACHRICHTEN, Near-infrared identification of the dimmest X-ray sources on the Galactic plane with the ESO/NTT SOFI camera, K Ebisawa; Beckmann, V; TJL Courvoisier; P Dubath; H Kaneda; Y Maeda; S Yamauchi; E Nishihara, 2003, 324, 1-2, 158, 158, Scientific journal, 10.1002/asna.200310057
- Refereed, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, ASCA X-ray source catalog in the galactic center region, M Sakano; K Koyama; H Murakami; Y Maeda; S Yamauchi, Jan. 2002, 138, 1, 19, 34, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of a transient X-ray pulsar, AX J1841.0-0536, in the Scutum arm region with ASCA, A Bamba; J Yokogawa; M Ueno; K Koyama; S Yamauchi, Dec. 2001, 53, 6, 1179, 1183, Scientific journal, 10.1093/pasj/53.6.1179
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A diffuse X-ray source, AX J1843.8-0352: Association with the radio complex G28.6-0.1 and identification of a new supernova remnant, A Bamba; M Ueno; K Koyama; S Yamauchi, Aug. 2001, 53, 4, L21, L24, Scientific journal, 10.1093/pasj/53.4.L21
- Refereed, SCIENCE, Origin of the hard X-ray emission from the galactic plane, K Ebisawa; Y Maeda; H Kaneda; S Yamauchi, Aug. 2001, 293, 5535, 1633, 1635, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, Faint X-ray sources resolved in the ASCA Galactic plane survey and their contribution to the Galactic ridge X-ray emission, M Sugizaki; K Mitsuda; H Kaneda; K Matsuzaki; S Yamauchi; K Koyama, May 2001, 134, 1, 77, 102, Scientific journal
- Refereed, NEW CENTURY OF X-RAY ASTRONOMY, ASCA observations of two molecular cloud cores in the Perseus molecular cloud complex, S Yamauchi; Y Tsuboi; K Koyama, 2001, 251, 286, 287, International conference proceedings
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASCA X-ray observations of the NGC 2023 and NGC 2024 regions, S Yamauchi; R Kamimura; K Koyama, Dec. 2000, 52, 6, 1087, 1096, Scientific journal, 10.1093/pasj/52.6.1087
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of a slow X-ray pulsator, AX J1740.1-2847, in the galactic center region, M Sakano; K Torii; K Koyama; Y Maeda; S Yamauchi, Dec. 2000, 52, 6, 1141, 1145, Scientific journal, 10.1093/pasj/52.6.1141
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASCA observations of the NGC 2264 molecular cloud, M Nakano; S Yamauchi; K Sugitani; K Ogura, Jun. 2000, 52, 3, 437, 446, Scientific journal, 10.1093/pasj/52.3.437
- Refereed, ASTROPHYSICAL JOURNAL, Discovery of a new pulsating X-ray source with a 1549.1 second period, AX J183220-0840, M Sugizaki; K Kinugasa; K Matsuzaki; Y Terada; S Yamauchi; J Yokogawa, May 2000, 534, 2, L181, L184, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray flares from an H alpha emission-line star in the Orion Region, Kiso A0904-105, S Yamauchi; R Kamimura; K Koyama, Feb. 2000, 52, 1, 161, 166, Scientific journal, 10.1093/pasj/52.1.161
- Refereed, BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, ASCA observations of the supernova remnant G156.2+5.7, S Yamauchi; J Yokogawa; H Tomida; K Koyama; K Tamura, 2000, 25, 3-4, 567, 570, Scientific journal
- Refereed, BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, X-ray detection from shell-like SNR G359.1-0.5, J Yokogawa; M Sakano; K Koyama; S Yamauchi, 2000, 25, 3-4, 571, 574, Scientific journal
- Refereed, BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, Non thermal X-ray from galactic supernova remnants, H Tomida; K Koyama; J Yokogawa; S Yamauchi, 2000, 25, 3-4, 695, 698, Scientific journal
- Refereed, BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, X-ray lobes of W50/SS433 system, M Namiki; N Kawai; T Kotanil; S Yamauchi; W Brinkmann, 2000, 25, 3-4, 709, 712, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, Merging young clusters in the Shapley supercluster, H Hanami; T Tsuru; K Shimasaku; S Yamauchi; Y Ikebe; K Koyama, Aug. 1999, 521, 1, 90, 98, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray observations of the Orion OB1b association, M Nakano; S Yamauchi; K Sugitani; K Ogura; T Kogure, Feb. 1999, 51, 1, 1, 12, Scientific journal, 10.1093/pasj/51.1.1
- Not Refereed, ASTRONOMISCHE NACHRICHTEN, X-ray lobes of W 50/SS 433 system, M Namiki; N Kawai; T Kotani; S Yamauchi; W Brinkmann, 1999, 320, 4-5, 326, 326, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, Magnetic activities in Young Stellar Objects, Y Tsuboi; K Hamaguchi; K Koyama; S Yamauchi, 1999, 320, 4-5, 175, 176, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, X-ray activities in the Galactic Center Region, Y Maeda; K Koyama; K Imanishi; H Murakami; M Nishiuchi; M Sakano; M Tsujimoto; J Yokogawa, 1999, 320, 4-5, 177, 178, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, Investigation of the galactic ridge X-ray emission, H Kaneda; K Makishima; S Yamauchi; M Sugizaki; NY Yamasaki, 1999, 320, 4-5, 322, 322, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, The X-ray global view of the Galactic Center region with the ASCA survey, M Sakano; K Koyama; J Yokogawa; H Murakami; M Nishiuchi; Y Maeda; S Yamauchi, 1999, 320, 4-5, 330, 330, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, ASCA observations of the Orion B cloud region, S Yamauchi; R Kamimura, 1999, 320, 4-5, 331, 331, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, Non-thermal emission from the Galactic Supernova Remnants, H Tomida; K Koyama; S Yamauchi, 1999, 320, 4-5, 342, 342, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, Faint X-ray sources resolved in the ASCA Galactic Plane Survey and their contribution to the X-ray ridge emission, M Sugizaki; K Matsuzaki; H Kaneda; S Yamauchi; K Mitsuda, 1999, 320, 4-5, 383, 383, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, Discovery of a 220 second X-ray pulsar, AX J1749.2-2725, K Torii; K Kinugasa; K Katayama; T Kohmura; H Tsunemi; M Sakano; M Nishiuchi; K Koyama; S Yamauchi, Dec. 1998, 508, 2, 854, 858, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASCA observations of the Chamaeleon II dark cloud, S Yamauchi; K Hamaguchi; K Koyama; H Murakami, Oct. 1998, 50, 5, 465, 474, Scientific journal, 10.1093/pasj/50.5.465
- Refereed, ASTROPHYSICAL JOURNAL, Discovery of a 7 second X-ray pulsar, AX J1845.0-0300, K Torii; K Kinugasa; K Katayama; H Tsunemi; S Yamauchi, Aug. 1998, 503, 2, 843, 847, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of X-ray emission from a radio supernova remnant G352.7-0.1, K Kinugasa; K Torii; H Tsunemi; S Yamauchi; K Koyama; T Dotani, Apr. 1998, 50, 2, 249, 255, Scientific journal, 10.1093/pasj/50.2.249
- Refereed, ASTROPHYSICAL JOURNAL, Discovery of the faint X-ray pulsar AX J1820.5-1434 with ASCA, K Kinugasa; K Torii; Y Hashimoto; H Tsunemi; K Hayashida; S Kitamoto; Y Kamata; T Dotani; F Nagase; M Sugizaki; Y Ueda; N Kawai; K Makishima; S Yamauchi, Mar. 1998, 495, 1, 435, 439, Scientific journal, 10.1086/305291
- Refereed, ASTRONOMISCHE NACHRICHTEN, Ginga faint source survey, S Yamauchi; H Awaki; K Iwasawa; Y Kamata; K Koyama; Y Tawara, 1998, 319, 1-2, 92, 92, Scientific journal
- Refereed, ASTRONOMISCHE NACHRICHTEN, Study of X-ray SNRs detected in the ASCA Galactic Plane Survey project, S Yamauchi; K Koyama; K Kinugasa; K Torii; M Nishiuchi; T Kosuga; Y Kamata, 1998, 319, 1-2, 111, 111, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, Complex spectra of the galactic ridge X-rays observed with ASCA, H Kaneda; K Makishima; S Yamauchi; K Koyama; K Matsuzaki; NY Yamasaki, Dec. 1997, 491, 2, 638, 652, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of an 11-s X-ray pulsar in the galactic-plane section of the Scorpius constellation, M Sugizaki; F Nagase; K Torii; K Kinugasa; T Asanuma; K Matsuzaki; K Koyama; S Yamauchi, Oct. 1997, 49, 5, L25, L30, Scientific journal, 10.1093/pasj/49.5.L25
- Refereed, ASTROPHYSICAL JOURNAL, ASCA observations of the Barnard 209 dark cloud and an intense X-ray flare on V773 Tauri, SL Skinner; M Gudel; K Koyama; S Yamauchi, Sep. 1997, 486, 2, 886, 902, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray analysis of the rho Ophiuchi dark cloud with ASCA: Source identification, X-ray spectra, and temporal variability, Y Kamata; K Koyama; Y Tsuboi; S Yamauchi, Aug. 1997, 49, 4, 461, 470, Scientific journal, 10.1093/pasj/49.4.461
- Refereed, ASTROPHYSICAL JOURNAL, Hard X-ray emission from the galactic ridge, NY Yamasaki; T Ohashi; F Takahara; S Yamauchi; K Koyama; T Kamae; H Kaneda; K Makishima; Y Sekimoto; M Hirayama; T Takahashi; T Yamagami; S Gunji; T Tamura; S Miyazaki; M Nomachi, Jun. 1997, 481, 2, 821, 831, Scientific journal, 10.1086/304097
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Discovery of non-thermal X-rays from the northwest shell of the new SNR RX J1713.7-3946: The second SN 1006?, K Koyama; K Kinugasa; K Matsuzaki; M Nishiuchi; M Sugizaki; K Torii; S Yamauchi; B Aschenbach, Jun. 1997, 49, 3, L7, L11, Scientific journal, 10.1093/pasj/49.3.L7
- Refereed, RADIATION FROM BLACK HOLES, FUTURE MISSIONS TO PRIMITIVE BODIES AND MIDDLE ATMOSPHERIC FINE STRUCTURES, ASCA observation of the Galactic Center, S Yamauchi; Y Maeda; K Koyama, 1997, 19, 1, 63, 70, Scientific journal
- Refereed, ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, Diffuse hard X-ray emission from the Galactic ridge, NY Yamasaki; T Ohashi; F Takahara; S Yamauchi; T Kamae; H Kaneda; K Makishima; K Koyama, Dec. 1996, 120, 4, C393, C396, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, ASCA observations of HD 104237 (A4e) and the origin of X-ray emission from Herbig Ae stars, SL Skinner; S Yamauchi, Nov. 1996, 471, 2, 987, 1001, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Broad-band X-ray observations of the Orion region with ASCA, S Yamauchi; K Koyama; M Sakano; K Okada, Oct. 1996, 48, 5, 719, 737, Scientific journal, 10.1093/pasj/48.5.719
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A New Eclipsing X-Ray Burster near the Galactic Center: A Quiescent State of the Old Transient A1742-289, Y Maeda; K Koyama; M Sakano; T Takeshima; S Yamauchi, Jun. 1996, 48, 3, 417, 423, Scientific journal, 10.1093/pasj/48.3.417
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Unresolved X-ray emission from the galactic ridge with ASCA, S Yamauchi; H Kaneda; K Koyama; K Makishima; K Matsuzaki; T Sonobe; Y Tanaka; N Yamasaki, Apr. 1996, 48, 2, L15, L20, 10.1093/pasj/48.2.L15
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-ray observations of NGC 2110 with Ginga and ASCA, I. Hayashi; K. Koyama; H. Awaki; S. Ueno; S. Yamauchi, Apr. 1996, 48, 2, 219, 229, Scientific journal, 10.1093/pasj/48.2.219
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASCA view of our galactic center: Remains of past activities in X-rays?, K Koyama; Y Maeda; T Sonobe; T Takeshima; Y Tanaka; S Yamauchi, Apr. 1996, 48, 2, 249, 255, Scientific journal, 10.1093/pasj/48.2.249
- Refereed, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, CALIBRATING THE BROAD-BAND X-RAY TELESCOPE, KA WEAVER; KA ARNAUD; EA BOLDT; D CHRISTIAN; M CORCORAN; SS HOLT; K JAHODA; R KELLEY; FE MARSHALL; RF MUSHOTZKY; R PETRE; G RAWLEY; PJ SERLEMITSOS; EM SCHLEGEL; AP SMALE; JH SWANK; AE SZYMKOWIAK, Jan. 1995, 96, 1, 303, 324, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, NEW TRANSIENT-X-RAY SOURCE IN THE SCUTUM REGION DISCOVERED WITH ASCA, S YAMAUCHI; T AOKI; K HAYASHIDA; H KANEDA; K KOYAMA; M SUGIZAKI; Y TANAKA; H TOMIDA; Y TSUBOI, 1995, 47, 2, 189, 194, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, IRON LINE ENERGY AND EQUIVALENT WIDTH OF THE GALACTIC-RIDGE EMISSION, S YAMAUCHI; K KOYAMA, 1995, 47, 4, 439, 443, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, X-RAY OBSERVATIONS OF CYGNUS A USING THE GINGA SATELLITE, S UENO; K KOYAMA; M NISHIDA; S YAMAUCHI; MJ WARD, Aug. 1994, 431, 1, L1, L4, Scientific journal
- Refereed, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, A HARD X-RAY HALO AROUND CYG X-3, S KAFUKU; S YAMAUCHI; M YAMAUCHI; N KAWAI; M MATSUOKA; K KOYAMA; T KIFUNE, May 1994, 268, 2, 437, 443, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A NONTHERMAL X-RAY-SPECTRUM FROM THE SUPERNOVA REMNANT W-50, S YAMAUCHI; N KAWAI; T AOKI, 1994, 46, 3, L109, L113, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASCA OBSERVATIONS OF HARD X-RAY-EMISSION FROM THE RHO-OPHIUCHI DARK CLOUD, K KOYAMA; Y MAEDA; M OZAKI; S UENO; Y KAMATA; Y TAWARA; S SKINNER; S YAMAUCHI, 1994, 46, 3, L125, L129, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, GINGA OBSERVATIONS OF SN-1006 AND THE LUPUS REGION, M OZAKI; K KOYAMA; S UENO; S YAMAUCHI, 1994, 46, 4, 367, 373, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, GINGA OBSERVATION OF THE ORION-B CLOUD REGION, S YAMAUCHI; K KOYAMA; M INDAKOIDE, 1994, 46, 5, 473, 478, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, HARD X-RAYS FROM THE ORION NEBULA REGION, S YAMAUCHI; K KOYAMA, Mar. 1993, 405, 1, 268, 272, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, THE 6.7 KEV IRON LINE DISTRIBUTION IN THE GALAXY, S YAMAUCHI; K KOYAMA, Feb. 1993, 404, 2, 620, 624, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ON THE NATURE OF SCT X-1, S YAMAUCHI; K KOYAMA, 1993, 45, 3, 449, 452, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, HARD X-RAY-EMISSION FROM THE REGION NEAR THE SUPERNOVA REMNANT HB-9 AND THE RADIO GALAXY 4C-46.09, S YAMAUCHI; K KOYAMA, 1993, 45, 4, 545, 550, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, X-RAY-SPECTRUM AND STRUCTURE OF THE SUPERNOVA REMNANT RX-04591+5147, S YAMAUCHI; S UENO; K KOYAMA; S NOMOTO; K HAYASHIDA; H TSUNEMI; ASAOKA, I, 1993, 45, 6, 795, 800, Scientific journal
- Refereed, Astronomy and Astrophysics, X-ray spectroscopy of the young supernova remnant RCW 86, Kaastra, J. S; Asaoka, I; Koyama, K; Yamauchi, S, Jan. 1992, 264, 654-660, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, OPTICALLY THIN HOT PLASMA NEAR THE GALACTIC-CENTER - MAPPING OBSERVATIONS OF THE 6.7 KEV IRON LINE, S YAMAUCHI; M KAWADA; K KOYAMA; H KUNIEDA; Y TAWARA; HATSUKADE, I, Dec. 1990, 365, 2, 532, 538, Scientific journal
- Refereed, ASTROPHYSICAL JOURNAL, HARD X-RAY-EMISSION FROM THE CARINA NEBULA, K KOYAMA; ASAOKA, I; N USHIMARU; S YAMAUCHI; RHD CORBET, Oct. 1990, 362, 1, 215, 218, Scientific journal
- Refereed, NATURE, IS THE 5-KPC GALACTIC ARM A COLONY OF X-RAY PULSARS, K KOYAMA; M KAWADA; H KUNIEDA; Y TAWARA; Y TAKEUCHI; S YAMAUCHI, Jan. 1990, 343, 6254, 148, 149, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, GINGA OBSERVATION OF THE 2S 0114+650 SYSTEM, S YAMAUCHI; ASAOKA, I; M KAWADA; K KOYAMA; Y TAWARA, 1990, 42, 3, L53, L58
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, NEW X-RAY SOURCES NEAR THE GALACTIC BULGE REGION, S YAMAUCHI; K KOYAMA, 1990, 42, 6, L83, L91
- Refereed, NATURE, LARGE-SCALE EXTENDED X-RAY-EMISSION FROM THE VIRGO CLUSTER OF GALAXIES, S TAKANO; H AWAKI; K KOYAMA; H KUNIEDA; Y TAWARA; S YAMAUCHI; K MAKISHIMA; T OHASHI, Jul. 1989, 340, 6231, 289, 290, Scientific journal
- Refereed, NATURE, INTENSE 6.7-KEV IRON LINE EMISSION FROM THE GALACTIC-CENTER, K KOYAMA; H AWAKI; H KUNIEDA; S TAKANO; Y TAWARA; S YAMAUCHI; HATSUKADE, I; F NAGASE, Jun. 1989, 339, 6226, 603, 605, Scientific journal
- Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, DISCOVERY OF 413.9-2ND X-RAY PULSATION FROM X1722-36, Y TAWARA; S YAMAUCHI; H AWAKI; T KII; K KOYAMA; F NAGASE, 1989, 41, 3, 473, 481, Scientific journal
MISC
- 2023, 2023
- 2023, 2023
- 2023, 2023
- 日本物理学会講演概要集(CD-ROM), Status report of the XRISM science operation, 内田悠介; 田代信; 田代信; 寺田幸功; 寺田幸功; 高橋弘充; 信川正順; 水野恒史; 宇野伸一郎; 久保田あや; 中澤知洋; 渡辺伸; 飯塚亮; 佐藤理江; 米山友景; 吉田鉄生; BALUTA Chris; 海老沢研; 江口智士; 深澤泰司; 橋口葵; 林克洋; 勝田哲; 北口貴雄; 小高裕和; 大野雅功; 太田直美; 阪間美南; 阪本菜月; 志達めぐみ; 塩入匠; 丹波翼; 谷本敦; 寺島雄一; 坪井陽子; 内田和海; 内山秀樹; 山田智史; 山内茂雄, 2023, 78, 1
- 2023, 2023
- 2020, 2020
- 2020, 2020
- 2020, 2020
- 2020, 2020
- 2020, 2020
- 2019, 2019
- Not Refereed, SPACE TELESCOPES AND INSTRUMENTATION 2018: ULTRAVIOLET TO GAMMA RAY, Concept of X-ray Astronomy Recovery Mission, Makoto Tashiro; Hironori Maejima; Kenichi Toda; Richard Kelley; Lillian Reichenthal; James Lobell; Robert Petre; Matteo Guainazzi; Elisa Costantini; Mark Edison; Ryuichi Fujimoto; Martin Grim; Kiyoshi Hayashida; Jan-Willem den Herder; Yoshitaka Ishisaki; Stephane Paltani; Kyoko Matsushita; Koji Mori; Gary Sneiderman; Yoh Takei; Yukikatsu Terada; Hiroshi Tomida; Hiroki Akamatsu; Lorella Angelini; Yoshitaka Arai; Hisamitsu Awaki; Iurii Babyk; Aya Bamba; Peter Barfknecht; Kim Barnstable; Thomas Bialas; Branimir Blagojevic; Joseph Bonafede; Clifford Brambora; Laura Brenneman; Greg Brown; Kimberly Brown; Laura Burns; Edgar Canavan; Tim Carnahan; Meng Chiao; Brian Comber; Lia Corrales; Cor de Vries; Johannes Dercksen; Maria Diaz-Trigo; Tyrone Dillard; Michael DiPirro; Chris Done; Tadayasu Dotani; Ken Ebisawa; Megan Eckart; Teruaki Enoto; Yuichiro Ezoe; Carlo Ferrigno; Yutaka Fujita; Yasushi Fukazawa; Akihiro Furuzawa; Luigi Gallo; Steve Graham; Liyi Gu; Kohichi Hagino; Kenji Hamaguchi; Isamu Hatsukade; Dean Hawes; Takayuki Hayashi; Cailey Hegarty; Natalie Hell; Junko Hiraga; Edmund Hodges-Kluck; Matt Holland; Ann Hornschemeier; Akio Hoshino; Yuto Ichinohe; Ryo Iizuka; Kazunori Ishibashi; Manabu Ishida; Kumi Ishikawa; Kosei Ishimura; Bryan James; Timothy Kallman; Erin Kara; Satoru Katsuda; Steven Kenyon; Caroline Kilbourne; Mark Kimball; Takao Kitaguchi; Shunji Kitamoto; Shogo Kobayashi; Takayoshi Kohmura; Shu Koyama; Aya Kubota; Maurice Leutenegger; Tom Lockard; Mike Loewenstein; Yoshitomo Maeda; Lynette Marbley; Maxim Markevitch; Connor Martz; Hironori Matsumoto; Keiichi Matsuzaki; Dan McCammon; Brian McNamara; Joseph Miko; Eric Miller; Jon Miller; Kenji Minesugi; Ikuyuki Mitsuishi; Tsunefumi Mizuno; Hideyuki Mori; Koji Mukai; Hiroshi Murakami; Richard Mushotzky; Hiroshi Nakajima; Hideto Nakamura; Shinya Nakashima; Kazuhiro Nakazawa; Chikara Natsukari; Kenichiro Nigo; Yusuke Nishioka; Kumiko Nobukawa; Masayoshi Nobukawa; Hirofumi Noda; Hirokazu Odaka; Mina Ogawa; Takaya Ohashi; Masahiro Ohno; Masayuki Ohta; Takashi Okajima; Atsushi Okamoto; Michitaka Onizuka; Naomi Ota; Masanobu Ozaki; Paul Plucinsky; F. Scott Porter; Katja Pottschmidt; Kosuke Sato; Rie Sato; Makoto Sawada; Hiromi Seta; Ken Shelton; Yasuko Shibano; Maki Shida; Megumi Shidatsu; Peter Shirron; Aurora Simionescu; Randall Smith; Kazunori Someya; Yang Soong; Yasuharu Sugawara; Andy Szymkowiak; Hiromitsu Takahashi; Toru Tamagawa; Takayuki Tamura; Takaaki Tanaka; Yuichi Terashima; Yohko Tsuboi; Masahiro Tsujimoto; Hiroshi Tsunemi; Takeshi Tsuru; Hiroyuki Uchida; Hideki Uchiyama; Yoshihiro Ueda; Shinichiro Uno; Thomas Walsh; Shin Watanabe; Brian Williams; Rob Wolfs; Michael Wright; Shinya Yamada; Hiroya Yamaguchi; Kazutaka Yamaoka; Noriko Yamasaki; Shigeo Yamauchi; Makoto Yamauchi; Keiichi Yanagase; Tahir Yaqoob; Susumu Yasuda; Nasa Yoshioka; Jaime Zabala; Irina Zhuravleva, 2018, 10699, id.1069922, 10.1117/12.2309455
- Not Refereed, 中学校理科におけるモーターの製作を取り入れた「電流が磁場から受ける力」の学習の実践と検討, YAMAUCHI Shigeo, Oct. 2017, 101-105
- Not Refereed, 高等学校「地学基礎」における二重フーリエ級数を用いた地質図の見方および地質断面図の作成の実 践と検討, YAMAUCHI Shigeo, Oct. 2017, 161-164
- Not Refereed, Proceedings of 35th ICRC, First discovery of iron line emission generated by low-energy cosmic rays, YAMAUCHI Shigeo; Nobukawa; K. K; Nobukawa, M; Yamauchi, S; Uchiyama, H; Koyama, K, Jul. 2017, 687
- Not Refereed, Proceedings of the XII Multifrequency Behaviour of High Energy Cosmic Sources Workshop, Origin of the Galactic Diffuse X-Ray Emission: Fe Line Diagnostics with Suzaku, YAMAUCHI Shigeo; Nobukawa, M; Nobukawa, K. K; Yamauchi, S; Uchiyama, H; Koyama, K, Jun. 2017, 55
- Not Refereed, 日本天文学会年会講演予稿集, 銀河リッジX線放射の中性鉄輝線における宇宙線の寄与, 信川久実子; 山内茂雄; 信川正順; 鶴剛; 小山勝二; 鳥居和史; 福井康雄, 20 Feb. 2016, 2016, 116
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, Performance of ASTRO-H hard X-ray telescope (HXT), Hisamitsu Awaki; Hideyo Kunieda; Manabu Ishida; Hironori Matsumoto; Akihiro Furuzawa; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Masayuki Itoh; Tatsuro Kosaka; Yoshitomo Maeda; Ikuyuki Mitsuishi; Takuya Miyazawa; Hideyuki Mori; Hosei Nagano; Yoshiharu Namba; Yasushi Ogasaka; Keiji Ogi; Takashi Okajima; Satoshi Sugita; Yoshio Suzuki; Keisuke Tamura; Yuzuru Tawara; Kentaro Uesugi; Shigeo Yamauchi, 2016, 9905, id.990512, 10.1117/12.2231258
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, The ASTRO-H (Hitomi) X-ray astronomy satellite, Tadayuki Takahashi; Motohide Kokubun; Kazuhisa Mitsuda; Richard Kelley; Takaya Ohashi; Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steve Allen; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Makoto Asai; Marc Audard; Hisamitsu Awaki; Magnus Axelsson; Philipp Azzarello; Chris Baluta; Aya Bamba; Nobutaka Bando; Marshall Bautz; Thomas Bialas; Roger Blandford; Kevin Boyce; Laura Brenneman; Greg Brown; Esra Bulbul; Edward Cackett; Edgar Canavan; Maria Chernyakova; Meng Chiao; Paolo Coppi; Elisa Costantini; Jelle De Plaa; Jan Willem Den Herder; Michael DiPirro; Chris Done; Tadayasu Dotani; John Doty; Ken Ebisawa; Megan Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew Fabian; Carlo Ferrigno; Adam Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi Gallo; Poshak Gandhi; Kirk Gilmore; Margherita Giustini; Andrea Goldwurm; Liyi Gu; Matteo Guainazzi; Daniel Haas; Yoshito Haba; Kouichi Hagino; Kenji Hamaguchi; Atsushi Harayama; Ilana Harrus; Isamu Hatsukade; Takayuki Hayashi; Katsuhiro Hayashi; Kiyoshi Hayashida; Junko Hiraga; Kazuyuki Hirose; Ann Hornschemeier; Akio Hoshino; John Hughes; Yuto Ichinohe; Ryo Iizuka; Yoshiyuki Inoue; Hajime Inoue; Kazunori Ishibashi; Manabu Ishida; Kumi Ishikawa; Kosei Ishimura; Yoshitaka Ishisaki; Masayuki Itoh; Naoko Iwata; Naoko Iyomoto; Chris Jewell; Jelle Kaastra; Timothy Kallman; Tuneyoshi Kamae; Erin Kara; Jun Kataoka; Satoru Katsuda; Junichiro Katsuta; Madoka Kawaharada; Nobuyuki Kawai; Taro Kawano; Shigeo Kawasaki; Dmitry Khangulyan; Caroline Kilbourne; Mark Kimball; Ashley King, 2016, 9905, id.99050U, 10.1117/12.2232379
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, Ray-tracing simulation and in-orbit performance of the ASTRO-H hard X-ray telescope (HXT), H. Matsumoto; H. Awaki; A. Furuzawa; M. Ishida; H. Kunieda; Y. Haba; T. Hayashi; R. Iizuka; K. Ishibashi; M. Itoh; T. Kosaka; Y. Maeda; I. Mitsuishi; T. Miyazawa; H. Mori; H. Nagano; Y. Namba; Y. Ogasaka; K. Ogi; T. Okajima; S. Sugita; Y. Suzuki; K. Tamura; Y. Tawara; K. Uesugi; S. Yamauchi, 2016, 9905, id.990541, 10.1117/12.2232135
- Not Refereed, Proceedings of the International Astronomical Union, Cambridge University Press, Origin of the galactic diffuse X-ray emission: Iron K-shell line diagnostics, Masayoshi Nobukawa; Hideki Uchiyama; Kumiko K. Nobukawa; Shigeo Yamauchi; Katsuji Koyama, 2016, 11, 206, 207, 10.1017/S1743921316012102
- Not Refereed, 日本天文学会年会講演予稿集, 銀河リッジX線放射の6.4keV輝線, 信川久実子; 信川正順; 鶴剛; 小山勝二; 山内茂雄, 20 Aug. 2015, 2015, 167
- Not Refereed, Proceedings of the conference Suzaku-MAXI 2014: ”Expanding the Frontiers of the X-ray Universe”, Mixed-morphology supernova remnant Kes27 with Suzaku, YAMAUCHI Shigeo; Minami, S; Yamauchi, S; Koyama, K, Sep. 2014, 48-49
- Not Refereed, Proceedings of the conference Suzaku-MAXI 2014: ”Expanding the Frontiers of the X-ray Universe”, A Suzaku comprehensive study of recombining plasma in SNRs, YAMAUCHI Shigeo; Sawada; M; Koyama, K; Bamba, A; Yamauchi, S; Fukui, Y, Sep. 2014, 64-65
- Not Refereed, Proceedings of the conference Suzaku-MAXI 2014: ”Expanding the Frontiers of the X-ray Universe”, Suzaku Observation of the Spiral Galaxy M101, YAMAUCHI Shigeo, Sep. 2014, 420-421
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, The ASTRO-H X-ray astronomy satellite, Tadayuki Takahashi; Kazuhisa Mitsuda; Richard Kelley; Felix Aharonian; Hiroki Akamatsu; Fumie Akimoto; Steve Allen; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Makoto Asai; Marc Audard; Hisamitsu Awaki; Philipp Azzarello; Chris Baluta; Aya Bamba; Nobutaka Bando; Marshall Bautz; Thomas Bialas; Roger D. Blandford; Kevin Boyce; Laura Brenneman; Gregory Brown; Ed Cackett; Edgar Canavan; Maria Chernyakova; Meng Chiao; Paolo Coppi; Elisa Costantini; Jelle De Plaa; Jan Willem Den Herder; Michael Dipirro; Chris Done; Tadayasu Dotani; John Doty; Ken Ebisawa; Teruaki Enoto; Yuichiro Ezoe; Andrew Fabian; Carlo Ferrigno; Adam Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Stefan Funk; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi Gallo; Poshak Gandhi; Kirk Gilmore; Matteo Guainazzi; Daniel Haas; Yoshito Haba; Kenji Hamaguchi; Atsushi Harayama; Isamu Hatsukade; Katsuhiro Hayashi; Takayuki Hayashi; Kiyoshi Hayashida; Junko Hiraga; Kazuyuki Hirose; Ann Hornschemeier; Akio Hoshino; John Hughes; Una Hwang; Ryo Iizuka; Yoshiyuki Inoue; Kazunori Ishibashi; Manabu Ishida; Kumi Ishikawa; Kosei Ishimura; Yoshitaka Ishisaki; Masayuki Itoh; Naoko Iwata; Naoko Iyomoto; Chris Jewell; Jelle Kaastra; Timothy Kallman; Tuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Junichiro Katsuta; Madoka Kawaharada; Nobuyuki Kawai; Taro Kawano; Shigeo Kawasaki; Dmitry Khangaluyan; Caroline Kilbourne; Mark Kimball; Masashi Kimura; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Saori Konami; Tatsuro Kosaka; Alexander Koujelev; Katsuji Koyama; Hans Krimm; Aya Kubota; Hideyo Kunieda, 2014, 9144, id.914425, 10.1117/12.2055681
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, ASTRO-H Hard X-ray Telescope (HXT), Hisamitsu Awaki; Hideyo Kunieda; Akihiro Furuzawa; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Manabu Ishida; Masayuki Itoh; Tatsuro Kosaka; Yoshitomo Maeda; Hironori Matsumoto; Takuya Miyazawa; Hideyuki Mori; Hosei Nagano; Yoshiharu Namba; Yasushi Ogasaka; Keiji Ogi; Takashi Okajima; Satoshi Sugita; Yoshio Suzuki; Keisuke Tamura; Yuzuru Tawara; Kentaro Uesugi; Koujun Yamashita; Shigeo Yamauchi, 2014, 9144, id.914426, 10.1117/12.2054633
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, The ASTRO-H X-ray observatory, Tadayuki Takahashi; Kazuhisa Mitsuda; Richard Kelley; Henri Aarts; Felix Aharonian; Hiroki Akamatsu; Fumie Akimotoe; Steve Allen; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Makoto Asai; Marc Audard; Hisamitsu Awaki; Philipp Azzarello; Chris Baluta; Aya Bamba; Nobutaka Bando; Mark Bautz; Roger Blandford; Kevin Boyce; Greg Brown; Ed Cackett; Maria Chernyakova; Paolo Coppi; Elisa Costantini; Jelle De Plaa; Jan Willem Den Herder; Michael DiPirro; Chris Done; Tadayasu Dotani; John Doty; Ken Ebisawa; Megan Eckart; Teruaki Enoto; Yuichiro Ezoe; Andrew Fabian; Carlo Ferrigno; Adam Foster; Ryuichi Fujimoto; Yasushi Fukazawa; Stefan Funk; Akihiro Furuzawa; Massimiliano Galeazzi; Luigi Gallo; Poshak Gandhi; Keith Gendreau; Kirk Gilmore; Daniel Haas; Yoshito Haba; Kenji Hamaguchi; Isamu Hatsukade; Takayuki Hayashi; Kiyoshi Hayashida; Junko Hiraga; Kazuyuki Hirose; Ann Hornschemeier; Akio Hoshino; John Hughes; Una Hwang; Ryo Iizuka; Yoshiyuki Inoue; Kazunori Ishibashi; Manabu Ishida; Kosei Ishimura; Yoshitaka Ishisaki; Masayuki Ito; Naoko Iwat; Naoko Iyomoto; Jelle Kaastr; Timothy Kallman; Tuneyoshi Kamae; Jun Kataoka; Satoru Katsuda; Hajime Kawahara; Madoka Kawaharada; Nobuyuki Kawai; Shigeo Kawasaki; Dmitry Khangaluyan; Caroline Kilbourne; Masashi Kimura; Kenzo Kinugasaa; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Tatsuro Kosaka; Alex Koujelev; Katsuji Koyama; Hans Krimm; Aya Kubota; Hideyo Kunieda; Stephanie LaMass; Philippe Laurent; Francois Lebrun; Maurice Leutenegger; Olivier Limousin; Michael Loewenstein; Knox Long; David Lumb, 2012, 8443, id.84431Z-84431Z-22, 10.1117/12.926190
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, Current status of ASTRO-H Hard X-ray telescopes (HXTs), Hisamitsu Awaka; Hideyo Kunieda; Akihiro Furuzawa; Yoshito Haba; Takayuki Hayashi; Ryo Iizuka; Kazunori Ishibashi; Manabu Ishida; Masayuki Itoh; Tatsuro Kosaka; Yoshitomo Maeda; Hironori Matsumoto; Takuya Miyazawa; Hideyuki Mori; Hosei Nagano; Yoshiharu Namba; Yasushi Ogasaka; Keiji Ogi; Takashi Okajima; Satoshi Sugita; Yoshio Suzuki; Keisuke Tamura; Yuzuru Tawara; Kentato Uesugi; Koujun Yamashita; Shigeo Yamauchi, 2012, 8443, id.844324-844324-8, 10.1117/12.926753
- Not Refereed, Proceedings of the 3rd Suzaku conference ”The Energetic Cosmos: from Suzaku to Astro-H”, Japan Aerospace Exploration Agency (JAXA), X-Ray Re?ection Nebulae with Large Equivalent Widths of Neutral Iron K-alpha Line in the Sgr C Region, YAMAUCHI Shigeo; Naka jima, H; Tsuru, T; Nobukawa, M; Matsumoto, H; Koyama, K; Murakami, H; Yamauchi, S, The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido JapanWe report on the results of the Suzaku observation in the Sgr C region, vicinity of the Galactic Center where there are giant MCs. We detected four diffuse clumps with strong line emission at 6.4 keV, Kalpha from neutral or low-ionized Fe. The X-ray spectra of the two bright clumps, exhibit strong Kalpha line from FeI with large equivalent widths (EWs) of 2.0 - 2.2 keV and clear Kbeta of FeI. The GCDX in the Sgr C region is composed of the 6.4 keV- and 6.7 keV-associated components. These are phenomenologically decomposed by taking relations between EWs of the 6.4 keV and 6.7 keV lines. Then the former EWs against the associated continuum in the bright clump regions are estimated to be 2.4(sup +2.3)(sub -0.7) keV. Since the two different approaches give similar large EWs of 2 keV, we strongly suggest that the 6.4 keV clumps in the Sgr C region are due to X-ray reflection/fluorescence (the X-ray reflection nebulae).Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science, 2010, 9, 114-115, 115
- Not Refereed, Proceedings of the 3rd Suzaku conference ”The Energetic Cosmos: from Suzaku to Astro-H”, Suzaku Observation of the Supernova Remnant G344.7-0.1, YAMAUCHI Shigeo, 2010, 122-123
- Not Refereed, Proceedings of the 3rd Suzaku conference ”The Energetic Cosmos: from Suzaku to Astro-H”, Characteristics of Energy Spectrum of the Galactic Ridge X-Ray Emission, YAMAUCHI Shigeo; Tanaka, Y; Yamauchi, S, 2010, 146-149
- Not Refereed, Proceedings of the 3rd Suzaku conference ”The Energetic Cosmos: from Suzaku to Astro-H”, Suzaku Spectroscopy of a Magnetar 1E 1841-045 and Search for NIR Pulsation of a Magnetar 4U 0142+61, YAMAUCHI Shigeo; Morii, M; Kawai, N; Terada, Y; Takahashi, H; Arimoto, M; Kitamoto, S; Kohmura, T; Shibazaki, N; Yamauchi, S; Kobayashi, N; Tanaka, Y. T; Terada, H, 2010, 218-219
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, The ASTRO-H mission, Tadayuki Takahashi; Kazuhisa Mitsuda; Richard Kelley; Felix Aharonian; Fumie Akimoto; Steve Allen; Naohisa Anabuki; Lorella Angelini; Keith Arnaud; Hisamitsu Awaki; Aya Bamba; Nobutaka Bando; Mark Bautz; Roger Blandford; Kevin Boyce; Greg Brown; Maria Chernyakova; Paolo Coppi; Elisa Costantini; Jean Cottam; John Crow; Jelle De Plaa; Cor De Vries; Jan Willem Den Herder; Michael DiPirro; Chris Done; Tadayasu Dotani; Ken Ebisawa; Teruaki Enoto; Yuichiro Ezoe; Andrew Fabian; Ryuichi Fujimoto; Yasushi Fukazawa; Stefan Funk; Akihiro Furuzawa; Massimiliano Galeazzi; Poshak Gandhi; Keith Gendreau; Kirk Gilmore; Yoshito Haba; Kenji Hamaguchi; Isamu Hatsukade; Kiyoshi Hayashida; Junko Hiraga; Kazuyuki Hirose; Ann Hornschemeier; John Hughes; Una Hwang; Ryo Iizuka; Kazunori Ishibashi; Manabu Ishida; Kosei Ishimura; Yoshitaka Ishisaki; Naoki Isobe; Masayuki Ito; Naoko Iwata; Jelle Kaastra; Timothy Kallman; Tuneyoshi Kamae; Hideaki Katagiri; Jun Kataoka; Satoru Katsuda; Madoka Kawaharada; Nobuyuki Kawai; Shigeo Kawasaki; Dmitry Khangaluyan; Caroline Kilbourne; Kenzo Kinugasa; Shunji Kitamoto; Tetsu Kitayama; Takayoshi Kohmura; Motohide Kokubun; Tatsuro Kosaka; Taro Kotani; Katsuji Koyama; Aya Kubota; Hideyo Kunieda; Philippe Laurent; François Lebrun; Olivier Limousin; Michael Loewenstein; Knox Long; Grzegorz Madejski; Yoshitomo Maeda; Kazuo Makishima; Maxim Markevitch; Hironori Matsumoto; Kyoko Matsushita; Dan McCammon; Jon Miller; Shin Mineshige; Kenji Minesugi; Takuya Miyazawa; Tsunefumi Mizuno; Koji Mori; Hideyuki Mori; Koji Mukai; Hiroshi Murakami; Toshio Murakami; Richard Mushotzky, 2010, 7732, 77320Z-77320Z-18, 10.1117/12.857875
- Not Refereed, Proceedings of SPIE - The International Society for Optical Engineering, Hard X-ray telescope to be onboard ASTRO-H, Hideyo Kunieda; Hisamitsu Awaki; Akihiro Furuzawa; Yoshito Haba; Ryo Iizuka; Kazunori Ishibashi; Manabu Ishida; Masayuki Itoh; Tatsuro Kosaka; Yoshitomo Maeda; Hironori Matsumoto; Takuya Miyazawa; Hideyuki Mori; Yoshiharu Namba; Yasushi Ogasaka; Keiji Ogi; Takashi Okajima; Yoshio Suzuki; Keisuke Tamura; Yuzuru Tawara; Kentato Uesugi; Koujun Yamashita; Shigeo Yamauchi, 2010, 7732, 773214-773214-12, 10.1117/12.856892
- Not Refereed, SPACE TELESCOPES AND INSTRUMENTATION 2010: ULTRAVIOLET TO GAMMA RAY, Current Status of the Pre-Collimator Development for the ASTRO-H X-ray Telescopes, Hideyuki Mori; Yoshito Haba; Takuya Miyazawa; Akihiro Furuzawa; Yuzuru Tawara; Hideyo Kunieda; Shigeo Yamauchi; Hisamitsu Awaki; Manabu Ishida; Yoshitomo Maeda; Aya Bamba; Ryo Iizuka; Takashi Okajima; Richard Mushotzky, 2010, 7732, 77323E-77323E-10, 10.1117/12.856803
- Not Refereed, Proceedings of the 4th international MAXI workshop ”The First Year of MAXI: Monitoring Variable X-Ray sources”, Ginga Observation of a Recurrent Soft X-Ray Transient Source 1RXS J170930.2-263927, YAMAUCHI Shigeo, 2010, 193-196
- Not Refereed, Meeting abstracts of the Physical Society of Japan, 一般社団法人日本物理学会, 22aZJ-9 Suzaku Observation of Extended Hard X-ray Emission of the Galactic Center, Nakazawa K; Kokubun M; Makishima K; Takahashi T; Ebisawa K; Bamba A; Senda A; Mori H; Inui T; Hyodo Y; Uchiyama H; Takikawa Y; Nobukawa M; Matsumoto H; Tsuru T; Koyama K; Yamauchi S; Takahashi H; Mizuno T, 21 Aug. 2007, 62, 2, 107, 107
- Not Refereed, IEEE Nuclear Science Symposium Conference Record, In-flight status of the X-ray observatory Suzaku, T. Dotani; K. Mitsuda; M. Bautz; H. Inoue; R. L. Kelley; K. Koyama; H. Kunieda; K. Makishima; Y. Ogawara; R. Petre; T. Takahashi; H. Tsunemi; N. E. White; N. Anabuki; L. Angelini; K. Arnaud; H. Awaki; A. Bamba; K. Boyce; G. V. Brown; K. W. Chan; J. Cottam; J. Doty; K. Ebisawa; Y. Ezoe; A. C. Fabian; E. Figueroa; R. Fujimoto; Y. Fukazawa; T. Furusho; A. Furuzawa; K. Gendreau; R. E. Griffiths; Y. Haba; K. Hamaguchi; I. Harrus; G. Hasinger; I. Hatsukade; K. Hayashida; P. J. Henry; J. S. Hiraga; S. S. Holt; A. Hornschemeier; J. P. Hughes; U. Hwang; M. Ishida; Y. Ishisaki; N. Isobe; M. Itoh; N. Iyomoto; S. M. Kahn; T. Kamae; H. Katagiri; J. Kataoka; H. Katayama; N. Kawai; M. Kawaharada; C. Kilbourne; K. Kinugasa; S. Kissel; S. Kitamoto; M. Kohama; T. Kohmura; M. Kokubun; T. Kotani; J. Kotoku; A. Kubota; G. M. Madejski; Y. Maeda; F. Makino; A. Markowitz; C. Matsumoto; H. Matsumoto; M. Matsuoka; K. Matsushita; D. McCammon; T. Mihara; K. Misaki; E. Miyata; T. Mizuno; K. Mori; H. Mori; M. Morii; H. Moseley; K. Mukai; H. Murakami; T. Murakami; R. Mushotzky; F. Nagase; M. Namiki; H. Negoro; K. Nakazawa; J. A. Nousek; T. Okajima; Y. Ogasaka; T. Ohashi; T. Oshima; N. Ota; M. Ozaki; H. Ozawa; A. N. Parmar; W. D. Pence; F. Scott Porter; J. N. Reeves; G. R. Ricker; I. Sakurai; W. T. Sanders; A. Senda; P. Serlemitsos; R. Shibata; K. Shinozaki; Y. Soong; R. Smith; M. Suzuki; A. E. Szymkowiak; H. Takahashi; Y. Takei; T. Tamagawa; K. Tamura; T. Tamura; Y. Tanaka; M. Tashiro; Y. Tawara; Y. Terada; Y. Terashima; H. Tomida; K. Torii; Y. Tsuboi; Y. Tsujimoto; T. Tsuru; M. J.L. Turner; Y. Uchiyama; Y. Ueda; S. Ueno; M. Ueno; S. Uno; Y. Urata; S. Watanabe; N. Yamamoto; K. Yamaoka; N. Y. Yamasaki; K. Yamashita; M. Yamauchi; S. Yamauchi; T. Yaqoob; D. Yonetoku; A. Yoshida, 2007, 4, 2526, 2531, 10.1109/NSSMIC.2007.4436667
- Not Refereed, PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, Hard X-ray investigation of the galactic center region with Suzaku, Motohide Kokubun; Takayuki Yuasa; Ken-ichi Tamura; Kazuo Makishima; Tadayuki Takahashi; Kazuhiro Nakazawa; Noriko Y. Yamasaki; Hiroshi Murakami; Yoshitomo Maeda; Ken Ebisawa; Katsuji Koyama; Shigeo Yamauchi; Yasushi Fukazawa; Tsunefumi Mizuno; Hiromitsu Takahashi; Aya Bamba; Atsushi Senda; Yasuo Tanaka; Tsuneyoshi Kamae, 2007, 169, 169, 109, 112
- Not Refereed, PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, Suzaku spectral study of the galactic ridge X-ray emission, Ken Ebisawa; Shigeo Yamauchi; Yasuo Tanaka; Katsuji Koyama, 2007, 169, 169, 121, 124
- Not Refereed, 40 YEARS OF PULSARS: MILLISECOND PULSARS, MAGNETARS AND MORE, Suzaku observation of AXP 1E 1841-045 in SNR Kes 73, M. Morii; S. Kitatnoto; N. Shibazaki; D. Takei; N. Kawai; M. Arimotot; M. Ueno; Y. Terada; T. Kohmura; S. Yamauchi, 2007, 983, 268, +
- Not Refereed, 2006, 61, 0, 77, 77
- Not Refereed, Proceedings of the International Astronomical Union, Cambridge University Press, Synchrotron X-ray SNR candidates discovered in the ASCA Galactic Plane Survey, M. Ueno; S. Yamauchi; A. Bamba; H. Yamaguchi; K. Koyama; K. Ebisawa; Vink, 2005, 1, 230, 333, 337, 10.1017/S1743921306008593
- Not Refereed, PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, An ultrasoft transient X-ray source near the Galactic bulge region discovered with ginga, S Yamauchi; E Nakamura, 2004, 155, 155, 445, 446
- Not Refereed, PROCEEDINGS OF THE 5TH INTEGRAL WORKSHOP ON THE INTEGRAL UNIVERSE, A Chandra deep X-ray exposure on the Galactic plane and near infrared identification, K Ebisawa; A Paizis; TJL Couvoisier; P Dubath; M Tsujimoto; K Hamaguchi; Beckmann, V; A Bamba; A Senda; M Ueno; H Kaneda; Y Maeda; G Sato; S Yamauchi; R Cutri; E Nishihara, 2004, 552, 687, 690
- Not Refereed, Proc. of the workshop on Galaxies and Clusters of Galaxies, Chandra Di?use X-Ray Spectrum of the Galactic Ridge, YAMAUCHI Shigeo; Sato, G; Maeda, Y; Ebisawa, K; Kaneda, H; Yamauchi, S, 2003, 13-15
- Not Refereed, Proc. of Workshop ”X-ray and Radio Emission of Young Stars”, ASCA Observations of Star-forming Regions, YAMAUCHI Shigeo, 2003, 9-14
- Not Refereed, CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, X-ray emission from galactic plane, K Ebisawa; S Yamauchi; A Bamba; M Ueno; A Senda, 2003, 3, 281, 286
- Not Refereed, Proc. of Workshop ”Black Hole Astrophysics 2002”, Chandra Deep X-Ray Observation on the Galactic Plane, YAMAUCHI Shigeo; Ebisawa, K; Paizis, A; Maeda, Y; Kaneda, H; Sato, G; Yamauchi, S; Bamba, A, 2002, 25-35
- Not Refereed, Proceedings of IAU 8th Asian-Paci?c Regional Meeting, Volume II, ASCA Galactic Plane and Galactic Center Region Survey, YAMAUCHI Shigeo; Yamauchi, S; Bamba, A; Kaneda, H; Koyama, K; Kinigasa, K; Maeda,Y; Matsuzaki, K; Mitsuda, K; Murakami, H; Sakano, M; Sugizaki, M; Torii, K; Ueno, M, 2002, 81-82
- Not Refereed, ASP Conference Series 277 ”Stellar Coronae in the Chandra and XMM-Newton Era”, X-Ray Study of Herbig Ae/Be Stars, Intermediate Mass Young Stars, YAMAUCHI Shigeo; Hamaguchi, K; Koyama, K; Yamauchi, S; Terada, H, 2002, 193-200
- Publications of the Astronomical Society of Japan, ASCA Observations on Two Molecular Cloud Cores in the Perseus Complex, YAMAUCHI Shigeo; TSUBOI Yohko; KOYAMA Katsuji, 25 Oct. 2001, 53, 5, 885, 892
- Not Refereed, FROM DARKNESS TO LIGHT: ORIGIN AND EVOLUTION OF YOUNG STELLAR CLUSTERS, X-ray emission from intermediate- to high-mass pre-main sequence stars, K Hamaguchi; H Terada; A Bamba; K Imanishi; M Ueno; K Koyama; S Yamauchi; Y Tsuboi, 2001, 243, 627, 632
- Not Refereed, X-RAY ASTRONOMY, The population of faint X-ray sources in the galaxy and their contribution to the Galactic ridge X-ray emission, M Sugizaki; K Matsuzaki; H Kaneda; S Yamauchi; K Mitsuda, 2001, 599, 959, 962
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, X-ray emission from intermediate-mass young stars herbig Ae/Be stars, K Hamaguchi; K Koyama; S Yamauchi; H Terada, 2001, 251, 240, 241
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, ASCA observations of two molecular cloud cores in the Perseus molecular cloud complex, S Yamauchi; Y Tsuboi; K Koyama, 2001, 251, 286, 287
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, Chandra observation of a blank Galactic plane region, K Ebisawa; Y Maeda; H Kaneda; S Yamauchi, 2001, 251, 298, 299
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, Overall properties of the galactic ridge X-ray emission, H Kaneda; S Yamauchi; K Ebisawa; M Sugizaki, 2001, 251, 302, 303
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, Diffuse hard X-ray emission in the galactic bulge, M Kokubun; K Makishima; M Sakano; S Yamauchi; K Ebisawa, 2001, 251, 304, 305
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, X-ray source population of the Galactic center region obtained with ASCA, M Sakano; K Koyama; H Murakami; Y Maeda; S Yamauchi, 2001, 251, 314, 315
- Not Refereed, NEW CENTURY OF X-RAY ASTRONOMY, Development of the ISAS Ginga archive, K Asai; A Yamagishi; A Yamashita; M Watanabe; T Dotani; K Mitsuda; F Nagase; K Ebisawa; S Yamauchi; A Yoshida; S Kitamoto; Hatsukade, I, 2001, 251, 514, 515
- Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), Observation of the Galactic Bulge with ASCA, Kokubun N.; Makishima K.; Sakano M.; Yamauchi S.; Kamae T., 10 Sep. 2000, 55, 2, 66, 66
- Not Refereed, 「あすか」衛星による銀河面サーベイ観測, YAMAUCHI Shigeo, Jun. 2000, 93, 6, 293-299
- Not Refereed, Publications of the Astronomical Society of Japan, Astronomical Society of Japan, X-ray flares from an Hα emission-line star in the Orion region, Kiso A0904-105, Shigeo Yamauchi; Reiko Kamimura; Katsuji Koyama, 2000, 52, 1, 161, 166, 10.1093/pasj/52.1.161
- Publications of the Astronomical Society of Japan, ASCA Observations of the Supernova Remnant G156.2+5.7, YAMAUCHI Shigeo; KOYAMA Katsuji; TOMIDA Hiroshi; YOKOGAWA Jun; TAMURA Keisuke, 25 Feb. 1999, 51, 1, 13, 22
- Not Refereed, Proc. of Japanese-German Workshop on High Energy Astrophysics, ASCA Observations of the Chamaeleon Clouds, YAMAUCHI Shigeo, 1999, 22-25
- Not Refereed, Proc. of Japanese-German Workshop on High Energy Astrophysics, X-Ray and Radio Observations of NGC 1333 Star Forming Region, YAMAUCHI Shigeo; Itoh, M; Fukunaga, H; Sekimoto, Y; Tatematsu, K; Koyama, K; Tsuboi, Y; Yamauchi, S; Kobayashi, N; Hayashi, M; Ueno, S, 1999, 49-51
- Not Refereed, Proc. of Japanese-German Workshop on High Energy Astrophysics, Non-thermal Emission from the Shell-like Supernova Remnants, YAMAUCHI Shigeo; Tomida, H; Koyama, K; Yamauchi, S; Yokogawa, J, 1999, 81-85
- Not Refereed, Proc. of Japanese-German Workshop on High Energy Astrophysics, X-Ray SNRs found with the ASCA Galactic Plane Survey Pro ject, YAMAUCHI Shigeo; Yamauchi, S; ASCA Galactic; Plane Survey team, 1999, 110-112
- Not Refereed, Proc. of International Workshop ”Star Formation 1999”, ASCA Observations of the Monoceros OB1 Molecular Cloud, YAMAUCHI Shigeo; Nakano, M; Yamauchi, S; Sugitani, K; Ogura, K, 1999, 318-319
- Not Refereed, ASTROPHYSICAL JOURNAL, Discovery of the faint X-ray pulsar AX J1820.5-1434 with ASCA, K Kinugasa; K Torii; Y Hashimoto; H Tsunemi; K Hayashida; S Kitamoto; Y Kamata; T Dotani; F Nagase; M Sugizaki; Y Ueda; N Kawai; K Makishima; S Yamauchi, Mar. 1998, 495, 1, 435, 439, 10.1086/305291
- Not Refereed, 日本天文学会年会講演予稿集, Trace of galaxy cluster deep impact in the Sharpley super galaxy cluster region., 花見仁史; 山内茂雄; 鶴剛; 小山勝二; 嶋作一大; 池辺靖, 1998, 1998, 142
- Not Refereed, HOT UNIVERSE, Hot plasma in the galaxy, S Yamauchi, 1998, 188, 47, 50
- Not Refereed, HOT UNIVERSE, ASCA observation of NGC1333 star forming region, M Itoh; H Fukunaga; K Koyama; Y Tsuboi; S Yamauchi; N Kobayashi; M Hayashi; S Ueno, 1998, 188, 228, 229
- Not Refereed, HOT UNIVERSE, ASCA observations of Class I protostars in the Rho Oph dark cloud, Y Tsuboi; K Koyama; Y Kamata; S Yamauchi, 1998, 188, 236, 237
- Not Refereed, HOT UNIVERSE, Discovery of X-ray emission from the radio SNR G352.7-0.1, K Kinugasa; K Torii; H Tsunemi; S Yamauchi; K Koyama; T Dotani, 1998, 188, 251, 252
- Not Refereed, HOT UNIVERSE, ASCA observations of the SgrA region, Y Maeda; K Koyama; H Murakami; M Sakano; K Ebisawa; T Takeshima; S Yamauchi, 1998, 188, 352, 353
- Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 23a-J-9 Study of the Galactic Ridge X-ray Emission(II), Kaneda H.; Makishima K.; Matsuzaki K.; Koyama K.; Yamauchi S.; Yamasaki N.; Sugizaki M., 02 Sep. 1997, 52, 2, 79, 79
- Not Refereed, Astrophysical Journal, Institute of Physics Publishing, Hard X-ray emission from the Galactic ridge, N. Y. Yamasaki; T. Ohashi; F. Takahara; S. Yamauchi; K. Koyama; T. Kamae; H. Kaneda; K. Makishima; Y. Sekimoto; M. Hirayama; T. Takahashi; T. Yamagami; S. Gunji; T. Tamura; S. Miyazaki; M. Nomachi, 1997, 481, 2, 821, 831, 10.1086/304097
- Not Refereed, Proc. of International conference ”X-ray Imaging and Spectroscopy of Cosmic Hot Plasmas”, ASCA Observations of Galactic Ridge Emission, YAMAUCHI Shigeo; Yamauchi, S; Kaneda, H; Koyama, K; Makishima, K; Matsuzaki, K; Sonobe, T; Tanaka, Y; Yamasaki, N, 1997, 145-148
- Not Refereed, Proc. of International workshop ”All-sky X-ray Observations in the Next Decade”, Transient Sources in the Galactic Plane: First Results of the Galactic Plane Survey Project, YAMAUCHI Shigeo; Koyama, K; Nishiuchi, M; Kamata, Y; Sugizaki, M; Yamauchi, S; ASCA Galactic; Plane Survey team, 1997, 45-47
- Not Refereed, Proc. of International workshop ”All-sky X-ray Observations in the Next Decade”, A New Eclipsing Burster near the Galactic Center, YAMAUCHI Shigeo; Maeda, Y; Koyama, K; Sakano, M; Takeshima, T; Yamauchi, S, 1997, 117-122
- Not Refereed, Proc. of ASCA/ROSAT Workshop on Clusters of Galaxies, ASCA Survey of the Shapley Supercluster, YAMAUCHI Shigeo; Hanami, H; Shimasaku, K; Tsuru, T; Yamauchi, S; Koyama, K, 1997, 189-190
- Not Refereed, Publications of the Astronomical Society of Japan, Astronomical Society of Japan, Discovery of an 11-s X-ray pulsar in the galactic-plane section of the scorpius constellation, Mutsumi Sugizaki; Fumiaki Nagase; Ken'ichi Torii; Kenzo Kinugasa; Tatsuhiko Asanuma; Keiichi Matsuzaki; Katsuji Koyama; Shigeo Yamauchi, 1997, 49, 5, L25, L30, 10.1093/pasj/49.5.L25
- Not Refereed, Proc. of International conference ”UV and X-Ray Spectroscopy of Astrophysical and Laboratory Plasmas”, ASCA Observation of PMS Stars in the ρ Ophiuchi Dark Cloud Cores, YAMAUCHI Shigeo; Kamata, Y; Koyama, K; Maeda, Y; Ozaki, M; Tawara, Y; Ueno, S; Yamauchi, S, 1996, 283-286
- Not Refereed, Proc. of International conference ”UV and X-Ray Spectroscopy of Astrophysical and Laboratory Plasmas”, ASCA Observation of Supernova Remnant RX 04591+5147, YAMAUCHI Shigeo; Yamauchi, S; Tamura, K; Koyama, K; ASCA team, 1996, 315-318
- Not Refereed, Proc. of International workshop ”Roentgenstrahlung from the Universe”, ASCA Observations of Pre-Main-Sequence Stars, YAMAUCHI Shigeo; Skinner, S.L; Walter, F. M; Yamauchi, S, 1996, 69-70
- Abstracts of the meeting of the Physical Society of Japan. Annual meeting, The Physical Society of Japan (JPS), Study of the Galactic Ridge X-ray Emission, Kaneda H.; Makishima K.; Tashiro M.; Matsuzaki K.; Sugizaki M.; Tanaka Y.; Yamauchi S.; Yamasaki N., 16 Mar. 1995, 50, 1, 132, 132
- Not Refereed, Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 一般社団法人日本物理学会, 1p-J-2 Hot Gaseous Components in Spiral Galaxies and Their X-ray Emissions, Makishima K; Ikebe Y; Fukazawa Y; Kaneda H; Atsushita K; Tamura T; Ohashi T; Yamasaki N; Yamauchi S; Tsuru T, 12 Sep. 1994, 1994, 1, 173, 173
- Not Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASCA OBSERVATIONS OF HARD X-RAY-EMISSION FROM THE RHO-OPHIUCHI DARK CLOUD, K KOYAMA; Y MAEDA; M OZAKI; S UENO; Y KAMATA; Y TAWARA; S SKINNER; S YAMAUCHI, 1994, 46, 3, L125, L129
- Not Refereed, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, A NONTHERMAL X-RAY-SPECTRUM FROM THE SUPERNOVA REMNANT W-50, S YAMAUCHI; N KAWAI; T AOKI, 1994, 46, 3, L109, L113
- Not Refereed, 日本天文学会年会講演予稿集, 「ぎんが」によるNGC2110のX線観測 II, 林一蔵; 小山勝二; 山内茂雄; 鶴剛; 上野史郎; 粟木久光, 1993, 1993, C118
- Not Refereed, BACK TO THE GALAXY, X-RAY HALO FROM THE GALACTIC BULGE - THE 6.7 KEV LINE MAPPING, K KOYAMA; S YAMAUCHI, 1993, 278, 107, 114
- Not Refereed, 日本天文学会年会講演予稿集, 「ぎんが」によるSN1006の観測, 尾崎正伸; 山内茂雄; 上野史郎; 鶴剛; 小山勝二, 1992, 1992, A036
- Not Refereed, Proc. of International conference ”Frontiers of X-Ray Astronomy”, Ginga Observations of a Binary X-Ray Pulsar EXO 2030+375, YAMAUCHI Shigeo; Sun, X. J; Kawai, N; Matsuoka, M; Yoshida, A; Yamauchi, S; Koyama, K, 1992, 95-96
- Not Refereed, Proc. of International conference ”Frontiers of X-Ray Astronomy”, Hot Halo around the Galactic Bulge, YAMAUCHI Shigeo; Yamauchi, S; Koyama, K; Tsuru, T, 1992, 407-408
- Not Refereed, STRUCTURE AND EVOLUTION OF NEUTRON STARS, NEW X-RAY SOURCES NEAR THE GALACTIC BULGE REGIONS, S YAMAUCHI; K KOYAMA, 1992, 206, 208
- Not Refereed, Proc. of International workshop ”The X-Ray Background”, BBXRT Observations of the DXRB: First Results, YAMAUCHI Shigeo; Jahoda, K; Serlemitsos, P. J; Arnaud, K. A; Boldt, E; Holt, S; Marshall, F. E; Mushotzky, R. F; Petre, R; Sanders, W. T; Smale, A; Swank, J; Szymkowiak, A; Weaver, K; Yamauchi, S, 1992, 240-258
- Not Refereed, Japan Aerospace Exploration Agency, 銀河中心の X 線観測, YAMAUCHI Shigeo, Two obsevations of the Galactic Center with the Ginga satellite have been performed; one is the lunnar occultation observation and the other is the 6.7keV iron line mapping observation. Two kinds of diffuse X-ray emission and several X-ray point sources have been detected in the Galactic Center Region. The diffuse X-ray emission is considered as that from an optically thin hot plasma. We suggest that energetic explosions took place near the Galactic Center., 1990, 25, 215-221, 221
- Not Refereed, Proc. of International conference ”Physics of Neutron Stars and Black Holes”, Transient X-Ray Pulsar with 414 sec Period Discovered by Ginga, YAMAUCHI Shigeo; Tawara, Y; Yamauchi, S; Awaki, H; Kii, T; Koyama, K; Nagase, F, 1988, 71-74
Presentations
- 21 Sep. 2023, 20 Sep. 2023 - 22 Sep. 2023
- 21 Sep. 2023, 20 Sep. 2023 - 22 Sep. 2023
- 21 Sep. 2023, 20 Sep. 2023 - 22 Sep. 2023
- 21 Sep. 2023, 20 Sep. 2023 - 22 Sep. 2023
- 21 Sep. 2023, 20 Sep. 2023 - 22 Sep. 2023
- 20 Sep. 2023, 20 Sep. 2023 - 22 Sep. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Mar. 2023
- Sep. 2022, 13 Sep. 2022 - 15 Sep. 2022
- Sep. 2022, 13 Sep. 2022 - 15 Sep. 2022
- Sep. 2022
- Sep. 2022
- Sep. 2022
- Oral presentation, 05 Mar. 2022
- Oral presentation, 05 Mar. 2022
- 03 Mar. 2022
- Oral presentation, 02 Mar. 2022
- Oral presentation, 15 Sep. 2021
- Oral presentation, 14 Sep. 2021
- Oral presentation, 14 Sep. 2021
- Mar. 2021, 16 Mar. 2021 - 19 Mar. 2021
- Oral presentation, Mar. 2021, 16 Mar. 2021 - 19 Mar. 2021
- Mar. 2020, 16 Mar. 2020 - 19 Mar. 2020
- Mar. 2020, 16 Mar. 2020 - 19 Mar. 2020
- Mar. 2020, 16 Mar. 2020 - 19 Mar. 2020
- Mar. 2020, 16 Mar. 2020 - 19 Mar. 2020
- Mar. 2020, 16 Mar. 2020 - 19 Mar. 2020
- Sep. 2019, 11 Sep. 2019 - 13 Sep. 2019
- Sep. 2019, 11 Sep. 2019 - 13 Sep. 2019
- Sep. 2019, 11 Sep. 2019 - 13 Sep. 2019
- Sep. 2019, 11 Sep. 2019 - 13 Sep. 2019
- Sep. 2019, 11 Sep. 2019 - 13 Sep. 2019
- Sep. 2019, 11 Sep. 2019 - 13 Sep. 2019
- YAMAUCHI Shigeo, 近傍銀河団 IGR J17448-3232 の高温プラズマの調査, Mar. 2019, False
- YAMAUCHI Shigeo, 銀河中心に位置する超新星残骸Sgr A Eastの再結合優勢プラズマおよび中性 鉄輝線の起源, Mar. 2019, False
- YAMAUCHI Shigeo, 超新星残骸 IC 443 の過電離プラズマに対する低エネルギー宇宙線の寄与, Mar. 2019, False
- YAMAUCHI Shigeo, すざく衛星を用いた超新星残骸 HB9 の高温プラズマの観測, Mar. 2019, False
- YAMAUCHI Shigeo, すざく衛星による W51 領域からの中性鉄輝線の発見, Mar. 2019, False
- YAMAUCHI Shigeo, すざく衛星による超新星残骸 IC 443からの中性鉄輝線の発見, Sep. 2018, False
- YAMAUCHI Shigeo, 超新星残骸G323.7-1.0における6.4 keV鉄輝線と低温プラズマの発見, Mar. 2018, False
- YAMAUCHI Shigeo, X 線天文衛星「すざく」による超新星残骸 Sgr A East の過電離プラズマの探査, Mar. 2018, False
- YAMAUCHI Shigeo, すざく衛星による超新星残骸IC 443の過電離プラズマの電離状態の調査, Mar. 2018, False
- YAMAUCHI Shigeo, XMM-Newton 衛星による系外惑星 HD189733b のトランジット観測, Mar. 2018, False
- YAMAUCHI Shigeo, X 線衛星代替機 XARM における科学運用計画, Mar. 2018, False
- YAMAUCHI Shigeo, 銀河中心北側に位置する角状拡散軟 X 線放射, Mar. 2018, False
- YAMAUCHI Shigeo, 銀河リッジ X 線放射の中性鉄輝線における低エネルギー宇宙線の寄与, Oct. 2017, False
- YAMAUCHI Shigeo, 分子雲と相互作用している超新星残骸における宇宙線起源の中性鉄輝線探査, Sep. 2017, False
- YAMAUCHI Shigeo, 鉄 K 殻輝線精密診断による銀河系拡散 X 線放射の起源, Mar. 2017, False
- YAMAUCHI Shigeo, 銀河系バルジ領域における拡散 X 線強度と近赤外星数面密度の空間分布比較, Mar. 2017, False
- YAMAUCHI Shigeo, X線天文衛星「ひとみ (ASTRO-H)」搭載硬 X 線望遠鏡 (HXT) の軌道上 での性能評価II, Mar. 2017, False
- YAMAUCHI Shigeo, すざく衛星を用いた超新星残骸 W49B の再結合優勢プラズマの観測, Mar. 2017, False
- YAMAUCHI Shigeo, 超新星残骸における MeV 陽子起源の中性鉄輝線放射, Mar. 2017, False
- YAMAUCHI Shigeo, X線天文衛星「ひとみ (ASTRO-H)」搭載硬 X 線望遠鏡 (HXT) の軌道上 での性能評価, Sep. 2016, False
- YAMAUCHI Shigeo, 「ひとみ(ASTRO-H)」衛星：硬X線望遠鏡の軌道上での性能評価, Sep. 2016, False
- YAMAUCHI Shigeo, 銀河リッジX線放射の中性鉄輝線における宇宙線の寄与, Mar. 2016, False
- YAMAUCHI Shigeo, ASTRO-H衛星搭載X線望遠鏡について, Mar. 2016, False
- YAMAUCHI Shigeo, すざく衛星による渦巻銀河M101の観測, Sep. 2015, False
- YAMAUCHI Shigeo, 銀河リッジX線放射の6.4 keV輝線, Sep. 2015, False
- YAMAUCHI Shigeo, ASTRO-H搭載 硬X線望遠鏡(HXT)の開発の現状 VII, Mar. 2014, False
- YAMAUCHI Shigeo, Mixed-Morphology型超新星残骸Kes 27のプラズマの電離状態について, Mar. 2014, False
- YAMAUCHI Shigeo, ASTRO-H 搭載X線望遠鏡の開発の現状, Mar. 2014, False
- YAMAUCHI Shigeo; Yamauchi, S, Suzaku-MAXI 2014 -- Expanding the Frontiers of the X-ray Universe --, Suzaku Observation of the Spiral Galaxy M101, Feb. 2014, True
- YAMAUCHI Shigeo; Sawada, M; Koyama, K; Bamba, A; Yamauchi, S; Fukui, Y, Suzaku-MAXI 2014 -- Expanding the Frontiers of the X-ray Universe --, A Suzaku comprehensive study of recombining plasma in SNRs, Feb. 2014, True
- YAMAUCHI Shigeo; Minami, S; Yamauchi, S; Koyama, K, Suzaku-MAXI 2014 -- Expanding the Frontiers of the X-ray Universe --, Mixed-morphology supernova remnant Kes27 with Suzaku, Feb. 2014, True
- YAMAUCHI Shigeo, 超新星残骸G348.5+0.1のX線放射について, Sep. 2013, False
- YAMAUCHI Shigeo, ASTRO-H衛星搭載用X線望遠鏡(HXT,SXT)の開発II, Sep. 2013, False
- YAMAUCHI Shigeo, XMM-Newton衛星を用いた低表面輝度銀河団A1631のエントロピー測定, Mar. 2013, False
- YAMAUCHI Shigeo, ASTRO-H搭載 硬X線望遠鏡(HXT)の開発の現状 V, Mar. 2013, False
- YAMAUCHI Shigeo, 過電離プラズマモデルを用いた超新星残骸W49Bのスペクトル解析, Mar. 2013, False
- YAMAUCHI Shigeo, ASTRO-H搭載硬X線望遠鏡(HXT)の開発, Sep. 2012, False
- YAMAUCHI Shigeo, ASTRO-H搭載 硬X線望遠鏡(HXT)の開発の現状 V, Sep. 2012, False
- YAMAUCHI Shigeo, ASTRO-H搭載 硬X線望遠鏡(HXT)の開発の現状 IV, Mar. 2012, False
- YAMAUCHI Shigeo, Galactic diffuse X-ray emissionの鉄輝線について, Mar. 2012, False
- YAMAUCHI Shigeo, すざく衛星による低表面輝度銀河団A76のエントロピー測定, Mar. 2012, False
- YAMAUCHI Shigeo, すざく衛星による超新星残骸 G355.6-0.0 の高温プラズマの観測, Mar. 2012, False
- YAMAUCHI Shigeo, すざく衛星による天の川銀河の背後に潜む銀河団の発見, Sep. 2011, False
- YAMAUCHI Shigeo, ASTRO-H搭載 硬X線望遠鏡(HXT)の開発の現状 III, Sep. 2011, False
- YAMAUCHI Shigeo, ASTRO-H搭載 硬X線望遠鏡(HXT)の開発の現状 II, Mar. 2011, False
- YAMAUCHI Shigeo; Yamauchi, S, International Workshop "The First Year of MAXI: Monitoring Variable X-Ray Sources", Ginga Observation of a Recurrent Soft X-Ray Transient Source 1RXS J170930.2-263927, Nov. 2010, True
- YAMAUCHI Shigeo; Takahashi, T, SPIE Astronomical Instrumentation "Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray", The ASTRO-H Mission, Jun. 2010, True
- YAMAUCHI Shigeo; Awaki, H; Kunieda, H; Furuzawa, A; Haba, Y; Iizuka, R; Ishibashi, K; Ishida, M; Itoh, M; Kosaka, T; Maeda, Y; Matsumoto, H; Miyazawa, T; Mori, H; Namba, Y; Ogasaka, Y; Ogi, K; Okajima, T; Suzuki, Y; Tamura, K; Tawara, Y; Uesugi, K; Yamashita, K; Yamauchi, S, SPIE Astronomical Instrumentation "Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray", Hard X-ray telescope to be onboard ASTRO-H, Jun. 2010, True
- YAMAUCHI Shigeo; Mori, H; Haba, Y; Miyazawa, T; Furuzawa, A; Tawara, Y; Kunieda, H; Yamauchi, S; Awaki, H; Ishida, M; Maeda, Y; Bamba, A; Iizuka, R; Okajima, T; Mushotzky, R, SPIE Astronomical Instrumentation "Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray", Current status of the pre-collimator development for the ASTRO-H X-ray telescopes, Jun. 2010, True
- YAMAUCHI Shigeo, XMM-Newton衛星とすざく衛星による銀河団候補天体の発見, Mar. 2010, False
- YAMAUCHI Shigeo, Astro-H/XRTと硬X線望遠鏡ハウジングの開発の現状, Mar. 2010, False
- YAMAUCHI Shigeo, Astro-H搭載X線望遠鏡のプリコリメータ開発の現状, Mar. 2010, False
- YAMAUCHI Shigeo, 次期宇宙X線衛星Astro-H搭載用X線望遠鏡の開発, Mar. 2010, False
- YAMAUCHI Shigeo, すざく衛星による超新星残骸G12.0-0.1の観測, Sep. 2009
- YAMAUCHI Shigeo, AstroH塔載、硬X線望遠鏡用光線追跡シミュレーターの開発, Sep. 2009
- YAMAUCHI Shigeo; Ebisawa, K; Yamauchi, S; Tanaka, Y; Koyama, K, International conference "The Energetic Cosmos: from Suzaku to Astro-H", Suzaku Observation of Galactic Ridge and Bulge, Jul. 2009, True
- YAMAUCHI Shigeo; Tanaka, Y; Yamauchi, S, International conference "The Energetic Cosmos: from Suzaku to Astro-H", Characteristics of Energy Spectrum of the Galactic Ridge X-Ray Emission, Jul. 2009, True
- YAMAUCHI Shigeo; Yamauchi, S, International X-ray Observatory (IXO) Open Science Meeting, SNR Science, Jul. 2009, True
- YAMAUCHI Shigeo; Nakajima, H; Tsuru, T; Nobukawa, M; Matsumoto, H; Koyama, K; Murakami, H; Yamauchi, S, International conference "The Energetic Cosmos: from Suzaku to Astro-H", X-Ray Reflection Nebulae with Large Equivalent Widths of Neutral Iron K-alpha Line in the Sgr C Region, Jun. 2009, True
- YAMAUCHI Shigeo; Yamauchi, S, International conference "The Energetic Cosmos: from Suzaku to Astro-H", Suzaku Observation of the Supernova Remnant G344.7-0.1, Jun. 2009, True
- YAMAUCHI Shigeo; Morii, M; Kawai, N; Terada, Y; Takahashi, H; Arimoto, M; Kitamoto, S; Kohmura, T; Shibazaki, N; Yamauchi, S; Kobayashi, N; Tanaka, Y. T; Terada, H, International conference "The Energetic Cosmos: from Suzaku to Astro-H", Suzaku Spectroscopy of a Magnetar 1E 1841-045 and Search for NIR Pulsation of a Magnetar 4U 0142+61, Jun. 2009, True
- YAMAUCHI Shigeo, すざく衛星による超新星残骸 G344.7-0.1 の観測(II), Sep. 2008, False
- YAMAUCHI Shigeo, すざく衛星による超新星残骸 G344.7-0.1 の観測, Mar. 2008, False
- YAMAUCHI Shigeo, 「すざく」による Anomalous X-ray Pulsar 1E 1841?045 の観測 (II), Mar. 2008, False
- YAMAUCHI Shigeo, 「すざく」衛星による銀河中心拡散 X 線放射の観測, Sep. 2007, False
- YAMAUCHI Shigeo, 「ぎんが」衛星データアーカイブスによる銀河中心方向に位置するトランジェント天体の発見, Sep. 2007, False
- YAMAUCHI Shigeo, 超新星残骸 CTB37A 領域からの熱的 X 線放射とパルサー星雲候補天体の発見, Sep. 2007, False
- YAMAUCHI Shigeo, すざくによる銀河中心領域からの広がった硬 X 線放射の発見, Sep. 2007, False
- Oral presentation, 11 Mar. 2024 - 15 Mar. 2024
- Oral presentation, 11 Mar. 2024 - 15 Mar. 2024
- Oral presentation, 11 Mar. 2024 - 15 Mar. 2024
- Oral presentation
- Oral presentation, 20 Sep. 2023 - 22 Sep. 2023
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- Oral presentation, 20 Sep. 2023 - 22 Sep. 2023
- Oral presentation, 20 Sep. 2023 - 22 Sep. 2023
- Oral presentation, 20 Sep. 2023 - 22 Sep. 2023
Research Projects
- Grant-in-Aid for Scientific Research (C), 01 Apr. 2021 - 31 Mar. 2024, 21K03615, Study of the Galactic Center Activity by Measurement of Dynamics and Plasma Diagnostics with Precise X-ray Spectroscopy, 信川 正順; 内山 秀樹; 山内 茂雄; 信川 久実子, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Nara University of Education, 4160000, 3200000, 960000, 本研究課題での目的は、これまで解明されていない銀河中心拡散X線放射(GCXE)の起源を次世代のX線天文衛星XRISMを用いて観測し、構成成分を定量的に分離し、その運動を初めて測定することである。
XRISMは2022年度打ち上げ予定であり、本研究課題の研究者全員は XRISMの開発メンバーの一員でもある。2021年度は XRISMの開発を進め、観測の準備を行った。特に、観測装置の開発ではフライトモデルの製作を行い、検証試験および性能確認試験を実施した。さらにデータ較正の方法の開発も進めるとともに、実データを用いて較正データベースの準備を行った。打ち上げ後の観測データ処理システムの開発を進め、テストデータを用いた確認を実施し、問題がないことを確認した。
さらに、すざく衛星によるデータを用いて、GCXEスペクトルを構成する成分の定量分析を行った。我々が2016年に調べた結果では、5keV以上のエネルギー帯域だけであったが、全エネルギー帯域のスペクトルを用いた。その結果、X線点源や冷たいX線成分だけでは観測スペクトルの再現はできないが、それらに真に広がったプラズマ成分を加えると再現できることがわかった。そのプラズマは温度kT~1 keVの過電離状態である可能性がある。特に、これまでは温度kT~7 keVと高温であるため、銀河の重力では留めておけないことが問題だった。それよりも低温であれば、その問題は解決できるかもしれない。
また、GCXEの高温プラズマの候補の1つである超新星残骸の研究も進めた。特に通常の超新星残骸プラズマの進化では考えられない過電離状態の起源を明らかにするために、通常の電離進行型の超新星残骸も含めた複数の天体データを集めて、系統調査を行った。その結果、過電離を示す天体の電子温度は、通常天体の電子温度の時間変化と矛盾がなく、電離が促進されている可能性がわかった。, kaken - Grant-in-Aid for Scientific Research (C), 01 Apr. 2012 - 31 Mar. 2016, 24540232, Study of the Galactic Diffuse X-ray Emission, YAMAUCHI SHIGEO, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Nara Women's University, 2600000, 2000000, 600000, In order to investigate the origin of the Galactic diffuse X-ray emission (GDXE), we carried out a systematic study of iron K-shell lines in the Galaxy. Using intensities of three emission lines at 6.4, 6.7 and 6.97 keV, we determined the spatial distribution and equivalent width of each line for the first time. Comparing the spatial distributions and equivalent widths with those of the cataclysmic variables and flare stars, we discussed the origin of the GDXE. We found similar diffuse X-ray emission with an intense iron K-shell line in the spiral galaxy M101. We analyzed the data of supernova remnants and extended sources in the Galaxy and obtained new results of the X-ray emission., kaken
- Grant-in-Aid for Scientific Research (C), 2009 - 2011, 21540234, Spectral Study of the Galactic Diffuse X-Ray Emission, YAMAUCHI Shigeo, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Nara Women's University, 2080000, 1600000, 480000, Using the Suzaku data observed in the Galactic center, Galactic plane, and Galactic bulge regions, I studied properties of Fe-K emission lines of the Galactic diffuse X-ray emission. The ratios of 6. 97keV/6. 7 keV in the Galactic center and the Galactic bulge regions are systematically larger than that of the Galactic plane. The observed Fe emission line cannot be reproduced by a spectral model for active star binaries and white dwarf binaries. We also studied newly discovered X-ray sources and supernova remnants., kaken
- Grant-in-Aid for Scientific Research (C), 2006 - 2008, 18540228, Broad-Band X-Ray Observations of the Galactic Diffuse X-Ray Emission, YAMAUCHI Shigeo, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Iwate University, 1800000, 1500000, 300000, X線天文衛星により取得した観測データの解析により、銀河面X線放射に電離の進んでいない鉄からの輝線を発見し、数千万度の温度の希薄な高温プラズマガスからの放射に加えて非熱的放射が存在することを明らかにした。鉄輝線を中心に、X線スペクトルの特徴より起源について考察を行った。また、銀河中心、銀河円盤領域の観測中に見つかったトランジェント天体、銀河面X線放射との関連が深いと考えられる超新星残骸の解析も行い、これらの特徴、性質を明らかにした。, kaken
- Grant-in-Aid for Scientific Research (C), 2003 - 2005, 15540225, Research of Galactic Diffuse X-Ray Sources, YAMAUCHI Shigeo, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Iwate University, 1600000, 1600000, In order to investigate the diffuse X-ray emission located in the galactic plane and the galactic bulge region, we analyzed data obtained in scanning and pointing observations with the Ginga satellite. We made an intensity map of a K-line from a He-like iron in an optically thin hot plasma, and confirmed that the optically thin hot plasma has a wide distribution along the galactic plane. The intensity map in the 10-20 keV energy band is similar to that of the iron K-line, and hence the non-thermal X-rays are also found in the large part of the Galaxy.
We analyzed ASCA data of supernova remnants detected in the X-ray band for the first time. The X-ray spectrum of G344.7-0.1 exhibited an X-ray emission from an optically thin hot plasma with a temperature of about 9 million K and a strong emission line from a low-ionized iron.
The ASCA Galactic plane survey discovered several unidentified diffuse hard X-ray sources. We carried out detailed analysis using data of follow-up observations and a radio intensity map and found that the diffuse sources are candidates for supernova remnants emitting non-thermal X-rays.
We analyzed data of a transient X-ray source discovered in the galactic center region with Ginga. We determined its sky position. The X-ray spectra obtained in the several occasions were well represented by either a comptonized blackbody model or a two-temperature blackbody model and the spectral parameters did not change significantly., kaken - 特定領域研究, 2003 - 2004, 15037201, 銀河面サーベイ観測にもとづくブラックホール候補天体の研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 1400000, 1400000, ぎんが衛星を用いた銀河面サーベイ観測のデータを解析し、ブラックホール候補天体の探査を行った。その結果、じょうぎ座の方向に柔らかいX線スペクトルをもつ天体を発見した。X線カタログと照合したが、本研究で求めた誤差領域は大きいため、明確な対応天体は特定できなかった。新天体である可能性が高い。同じ領域はぎんが衛星で複数回観測を行っているが、この天体が検出できたのは1988年4月のみである。またアメリカのRXTE衛星の銀河面サーベイ観測でも対応する天体はみられない。これらのことから、トランジェント天体であると結論した。X線スペクトルは、ブラックホール天体がハイステートの時期に見せるX線スペクトルと同様の温度が600万度の降着円盤からの放射モデルでよく説明できる。X線スペクトルの特徴、トランジェント天体であることはブラックホール候補天体のもつ性質と矛盾しないことがわかった。この結果については論文にまとめ、投稿した。
銀河円盤領域にはたくさんのX線天体が存在する。銀河中心方向に見つかったトランジェント天体は、存在する位置とX線スペクトルのおおよその形から考えて、小質量星と中性子星との連星系である可能性が高い。そのX線スペクトルをこの種類の天体で適用される降着円盤からと中性子星表面からの放射のモデルで合わせてみると、降着円盤からの放射の温度は典型的な値に比べ高くなることがわかった。これはブラックホール候補天体のvery high stateにおける傾向とよく似ている。ブラックホール候補天体の場合と同じような高温のプラズマによるコンプトン散乱の効果も考慮し、スペクトル解析を行った。, kaken - 特定領域研究(A), 1998 - 2001, 10147103, X線によるマゼラン星雲等の星形成領域の研究, 小山 勝二; 山内 茂雄; 伊藤 真之; 長瀬 文昭; 北本 俊二, 日本学術振興会, 科学研究費助成事業, 京都大学, 77500000, 77500000, ASCA衛星とチャンドラ衛星(公募観測)をもちいたマゼラン雲のX線天体種族の系統的研究、星形成活動と関連する課題の研究、X線検出技術開発のプロジェクトを完成させた。
今年度の成果は:
小マゼラン雲のX線源を系統的に研究し、X線パルサー10個以上発見を含む、種族分類を終了した。最終報告の投稿論文を製作中である。
銀河系内、星形成領域の最高感度の観測を実行し、蛇使い座暗黒星雲から後期原始星(class1)と褐色わい星からのX線を始めて系統的に研究し、その発生機構を明らかにした。
オリオン分子雲中の前期原始星(class0)からのX線を発見した。また一角獣座の分子雲中から大質量前主系列星からのX線を始めて検出した。
世界最高レベルに近い性能をもつX線CCDの開発、製作に成功した。
またX線イベント抽出方法を開発し、実質的な高いエネルギー感度を向上を実現した。, kaken - 奨励研究(A), 1997 - 1998, 09740167, 天文衛星を用いた超新星残骸の研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 1700000, 1700000, 前年度に引き続き、現在私たちが「あすか」衛星を利用して進めている、硬X線銀河面サーベイ観測(ASCA Galactic Plane Survey)によって得られたデータの解析を行った。
銀河円盤上に存在し、電波領域で検出されている超新星残骸のX線スペクトルを調べた。これらの多くはX線スペクトルに硅素、硫黄などからの輝線が明確に検出され、超新星爆発の際に生じた衝撃波によって加熱生成された高温ガスからの放射であると結論できたが、一部の超新星残骸では、X線スペクトルに明確な輝線を検出することができなかった。観測時間が短いため、データ統計の不十分さによって輝線が検出できなかったという可能性も考えられるが、非熱的放射である可能性も考えられる。
また、サーベイ観測で、円盤状、アーク状、リング状の構造を持つ、拡がった天体がいくつか検出できた。これらは既知の天体に同定されず、新超新星残骸である可能性が高い。X線スペクトルは通常の超新星残骸に比べ、硬X線の割合が多く、また、明確な輝線を示さないことから、非熱的放射を持つ超新星残骸である可能性が考えられる。これらの性質を明らかにするために、長時間追観測を提案した。
最近の観測で、超新星残骸には非熱的放射が付随していることが示されてきた。銀河面に沿って拡がる拡散成分には、輝線を伴う高温ガス成分の他に、硬X線からガンマ線領域にわたって伸びる非熱的成分が存在することが指摘されているが、この成分は超新星残骸の集合として説明できる可能性がでてきた。今後、両成分について系統的に観測、研究を続けていく予定である。, kaken - Grant-in-Aid for international Scientific Research, 1996 - 1998, 08044103, X-ray Astronomy Study with the ASCA Satellite, NAGASE Fumiaki; TANAKA Yasuo; ISHIDA Manabu; TAKAHASHI Tadayiki; MITSUDA Kazuhisa; INOUE Hajime, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The Institute of Space and Astronautical Science, 9100000, 9100000, The purpose of this project is to perform observations and operations of ASCA in a collaboration between Japan and the United States of America, and to obtain scientific results from the X-ray observations on the X-ray binaries including compact objects, supernova remnants, active galactic nuclei, clusters of galaxies and the cosmic X-ray background. ASCA is the fourth Japanese X-ray satellite which was constructed in a collaboration between Japan and the U.S.A., and it was launched on February 20, 1993. The results of this project are summarized below :
(1)We had national meetings and Japan-U.S.A.international meetings every year to select observation targets from the proposals, and discuss the organization of observation and operation of the satellite.
(2)We examined the performance of the instruments onboard the satellite and provided the calibration database of the response of the instruments, including a time-dependent degradation of the performance of instruments.
(3)We continuosly updated various software programs for data analysis, and produced an archival database for the convenience of international users.
(4)We analyzed data from our own observations, and discussed the results with our partner country. These scientific results were presented at the international conferences and were published in academic journals.
(5)All of the archival data were released to the scientists around the world with well-organized formats when the period of exclusive use by the owners expired.
Because of the support by this grant-in-aid, we were able to perform well the ASCA observations and operations under the collaboration between Japan and the U.S.A.We obtained remarkable scientific results from the ASCA observations in various fields of X-ray astronomy., kaken - 奨励研究(A), 1996 - 1996, 08740167, X線観測による原始星の研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 900000, 900000, 本研究の目的は、原始星、T Tauri型星など前主系列星をX線で観測し、星形成の初期段階におけるX線放射メカニズムおよび活動性の進化を統一的に調べることである。このためさまざまな種類の天体を比較検討する必要があり、本年度は大質量星も形成されているオリオン星雲と小質星が生成されているカメレオン座分子雲IIのデータ解析を行い、結果を検討した。オリオン星雲では、原始星の存在している領域が密集領域であるため、あすか衛星の角分解能では、原始星候補からのX線を特定することができなかった。しかし、それ以外に多数のT Tauri型星が検出でき、これらが高温のプラズマガスからの放射として説明できることがわかった。カメレオン座分子雲IIの観測では全部で8つの天体を検出することができた。しかし、この領域に存在する原始星候補からは有為なX線を検出することができなっかった。原始星候補からのX線が検出できなかったカメレオン座分子雲IIと検出された蛇使い座分子雲、南の冠座分子雲との違いについて今後検討を進めたい。また、オリオン星雲とカメレオン座分子雲IIに存在するT Tauri型星の特徴を比較した結果、オリオン星雲の天体はカメレオン座分子雲IIの天体に比べて、ガスの温度が高温になる傾向があり、0.7-10keVのエネルギー領域の光度も大きいことがわかった。温度の違いは何が原因であるのか、今後サンプルを増やし、検討を行いたい。
この他、中質量の前主系列星であるHerbig Ae型星の観測も行い、X線スペクトルの解析から高温ガスからの放射であること示した。高速の星風や表面磁場を持たないと考えられているこの種類の天体で、観測されたような高温のプラズマガスを生成するメカニズムについて検討を行った。, kaken - 重点領域研究, 1996 - 1996, 08212202, 銀河系内高温ガスと関連天体の研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 900000, 900000, 1.銀河系内高温ガスの研究
銀河面サ-ペイ観測のデータを用いて、Galactic Ridge Emissionの特徴と銀河系内の分布を調べた。銀河円盤上の各観測点で得られたGalactic Ridge Emissionのスペクトルは、いずれも0.7-1keVと7-9keV程度の2つの温度を持つ電離非平衡段階にある高温ガスとして再現できることがわかった。このことは銀河円盤全体にわたってほぼ同じ物理状態の高温ガスが分布していることを示す。また、銀河円盤に沿った方向の高温ガスの分布を調べてみると、高温成分は銀河中心に対してほぼ対称な分布であるのに対し、低温成分は銀河中心に対して非対称になっていることがわかった。一方、銀河円盤に垂直な方向のスペクトルの変化を調べた結果、銀河面から離れると、低温成分についてはそれほど変化しないが、高温成分は急激に減少し、鉄輝線を含まない硬いスペクトルを持つ成分に変わっていく傾向があることがわかった。
2.超新星残骸の研究
Galactic Ridge Emissionと関連する天体である超新星残骸に注目し、銀河面サーベイ観測のデータの解析を進めた。電波サーベイでは検出されていなかった超新星残骸G347.5-0.5を検出し、その解析からシェル部分には輝線が見られず、非熱的放射であることを明らかにした。これは超新星残骸で粒子加速が行われている可能性を示唆するもので、SN1006につづき2番目のサンプルである。また、これまでに電波サーベイでは検出されていたが、X線では検出されていなかった超新星残骸を多数検出し、これらのX線領域での特徴を調べた。, kaken - 奨励研究(A), 1995 - 1995, 07740178, X線観測による星形成領域の磁気的活動性の研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 1000000, 1000000, 本年度は主として活発な星形成領域の一つであるオリオン星雲領域の「あすか」衛星により取得したデータの解析を行った。観測領域には明るい天体の他に強度が弱い天体や「あすか」では点源に分離できない領域が含まれている。星形成領域に存在する天体の特徴を明確にするため、観測領域を複数の天体を含んだ4つの大きな領域に分割してスペクトルを集積し、この統計の良い平均のスペクトルの特徴を調べてみた。いずれの領域も1温度の高温プラズマガスモデルでは説明できず、少なくとも2温度のモデルが必要であることがわかった。2温度で合わせた場合の高温成分の温度は3×10^7K以上となる。
次に領域毎の平均スペクトルと個々の天体のスペクトルを比較するため、検出された天体のうち統計の良いものについてスペクトルを調べてみた。その結果、いずれの天体も10^7K以上の高温成分が必要であること、統計の良いものには、領域毎のスペクトルと同様、少なくとも2温度が必用なものがあることがわかった。
観測を行った時期には個々の天体からフレアのような活動性は観測できなかった。若い天体はフレアのような突発的な活動性のみならず、小さなフレアが表面全体で起こっていることも含む比較的定常的な活動性も伴っていることになる。
今後は他の波長の結果との比較や、オリオン星雲領域以外の星形成領域の結果との比較を行い、星形成領域における磁気的活動性の統一的な理解を目指す。, kaken - 重点領域研究, 1995 - 1995, 07222202, X線観測による銀河系内高温ガスの研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 1000000, 1000000, 銀河系内高温ガスの起源を調べるため、本年度は「あすか」衛星で取得した銀河円盤領域のデータの解析を行い、「ぎんが」衛星では明確にできなかったGalactic Ridge Emission(銀河系内高温ガス)の小さなスケールの構造を調べた。得られたイメージには点源や数分角程度のサイズの強度むらが見られるが、これら点源、強度むらの強度は非常に弱く、Galactic Ridge Emissionの大部分は検出した点源よりも暗い天体(2×10^<33>erg s^<-1>以下)、あるいは一様に拡がった輻射であると結論できる。また、視野ごとの強度のばらつきからもGalactic Ridge Emissionを点源の集合体として説明する場合、一天体あたりの光度は10^<34>erg s^<-1>以下でなければならないことを結論づけた。
これまでの観測結果を用いて、Galactic Ridge Emissionの起源となりうる天体を検討した。「あすか」衛星以前の観測結果からGalactic Ridge Emissionの実体を担う天体は中性子星や白色わい星を含む連星系や主系列星などではなく、比較的小さいサイズの広がりを持つ若い超新星残骸や星形成領域が候補として考えられてきた。しかし、「あすか」衛星により新たに得られた一点源あたりの光度とガスの電離度の制限は通常の若い超新星残骸や星形成領域をも候補から除外することになり、性質の良く調べられた天体の単純な重ね合わせで説明することは難しいということが分かった。
Galactic Ridge Emissionの特徴が明らかになるにつれて、その実体を担う天体はより特殊なものである可能性が高まっている。今後、銀河面サーベイ観測を実行し、高温ガスの特徴が銀河系内の場所によりどのような違いがあるのか、また、高温ガスの実体を担う新種の天体が存在しているのか等を調べていく予定である。, kaken - 重点領域研究, 1994 - 1994, 06233202, ラインX線を利用した銀河系内高温ガスの研究, 山内 茂雄, 日本学術振興会, 科学研究費助成事業, 岩手大学, 2000000, 2000000, 銀河円盤領域に存在するDiffuse X-ray Emissionが強度の弱い多くの点源の集まりであるのか、それとも真に拡がった輻射であるのかを観測的に明らかにするために、「あすか」衛星を用いて銀河円盤領域の撮像観測を行った。この観測中にQuiescent stateからFlare stateに移行したTransient X-ray sourceを発見した。スペクトルの特徴はX線パルサーであることを示唆するが、今回の観測ではパルス周期は検出できなかった。また、隣接する領域でも比較的明るい2点源を検出した。これらの3点源以外には強度が0.006count/s程度の暗い点源が数個程度検出されたのみで、検出できた点源の強度では視野全体の強度(0.2-0.3count/s)を説明することは難しいことが分かった。一方、ガスの物理状態を調べるために行ったX線スペクトルの解析から鉄ラインのエネルギー、強度が電離平衡状態にある宇宙組成の高温ガスから期待されるよりも低いことが分かった。これはガスが電離非平衡状態にあることを示唆する。また、「あすか」の観測からは低温の別成分の存在も考えられる。
輝線を含めたX線スペクトルの類似性、銀河系内の分布から銀河系内高温ガスの起源として考えられる超新星残骸、星形成領域を観測し、X線スペクトルの比較も行った。「てんま」「ぎんが」「あすか」衛星による観測から、いずれのスペクトルも数千万度の高温ガスからの輻射とて説明できることが分かってきた。一方、輝線の強度、エネルギーに注目すると、星形成領域の場合には輝線が弱く元素組成が宇宙組成以下の電離平衡状態にあるガスからの輻射として表現できるのに対し、超新星残骸の場合は連続成分の温度に対して輝線が強く、未だ電離平衡に達していないガスからの輻射と解釈できる。輝線の特徴から判断すると、星形成領域を銀河系内高温ガスの起源として考えることは難しいことが分かった。, kaken - Grant-in-Aid for international Scientific Research, 1992 - 1994, 04044167, X-Ray Astronomy Study with the Astro-D Satellite, NAGASE Fumiaki; DOTANI Takayasu; ISHIDA Manabu; KII Tsuneo; ITOH Masayuki; MATSUOKA Masaru; SHIBAZAKI Noriaki; OHASHI Takaya; KUNIEDA Hideyo; TAWARA Yujuru; KITAMOTO Shunji; MIHARA Tatehiro; TANAKA Yasuo; CANIZARES C.; RICKER G.; TSURU Takeshi; AWAKI Hisamitsu; KAWAI Nobuyuki; YOSHIDA Atsumasa; SERLEMITSOS P.; HAYASHIDA Kiyoshi; BREON S.; EBISAWA Ken; VOLZ S.v.; KELLEY R.; HELFAND D.; MCCAMMON; TSUNEMI Hiroshi; MAKISHIMA Kazuo; MITSUDA Kazuhisa; MURAKAMI Toshiaki; KOYAMA Katsuji; YAMASHITA Koujun; OGAWARA Yoshiaki; MIYAMOTO Shigenori; MUSHOTZKY R.; MAKINO Fumiyashi; HOLT S.; INOUE Hajime, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The Institute of Space and Astronautical Science, 11600000, 11600000, ASCA (ASTRO-D), the fourth X-ray astronomy satellite of ISAS,was successfully launched on February 20,1993. It carries nested thin-foil X-ray mirrors providing a large effective area over a wide energy range from 0.5 to 10keV.A set of CCD cameras and imaging gas scintillation proportional counters are placed on the focal plane. ASCA is a high-throughput imaging and spectroscopic X-ray observatory with these instruments.
An extensive collaboration between Japanese and U.S.scientists has been carried out in the joint developments of the X-ray telescopes, the X-ray CCD cameras, and computer software. It is continuing in the maintenance and the in-flight calibration of the instruments, and also in the data analysis and the following scientific activities.
ASCA is an X-ray astronomy observatory which is, for the first time, capable of performing imaging and spectroscopic observations simultaneously over a wide energy range 0.5-10keV.The ASCA instruments cover the most important energy band for plasma diagnostics, because all the K-lines and the K-absorption edges from oxygen through iron at various ionization stages lie within this band. The CCD camera of ASCA can resolve all major lines individually. Motion of plasma of the order or greater than 1000km/s can be measured significantly from Doppler shift of the line energies. These capabilities of ASCA allow diagnostics of accreting matter around such compact objects as neutron stars and black holes. Spatially-resolved spectroscopy with ASCA also provides powerful means for the investigations of extended plasmas in supernova remnants, galaxies, and clusters of galaxies.
The key elements of ASCA are succesfully working in orbit. ASCA has already obtained several remarkable scientific results. Most of them are due to the Japan-US collaboration with the help of this International Scientific Research Program as A Grant-in Aid for Scientific Research., kaken - 基盤研究B, 01 Apr. 2024 - 31 Mar. 2029, Coinvestigator, 超精密X線分光で解明する高温ガスと宇宙線の相互作用：銀河系進化論の構築
- 基盤C, 01 Apr. 2021 - 31 Mar. 2024, Coinvestigator, 超精密X線分光を用いた運動速度とプラズマ診断による銀河中心領域の活動史の解明
