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  2. Ryuichi Fujimoto

Ryuichi Fujimoto

  (藤本 龍一)

Profile Information

Affiliation
Professor, Department of Space Astronomy and Astrophysics, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
Professor, Space and Astronautical Science, Graduate Institute for Advanced Studies, The Graduate University for Advanced Studies
Visiting Professor, Department of Physics, School of Science, Institute of Science Tokyo
Degree
Ph. D.(The University of Tokyo)
master's degree(The University of Tokyo)
Researcher number
20280555
ORCID ID
 https://orcid.org/0000-0002-2374-7073
J-GLOBAL ID
200901095989600566
researchmap Member ID
1000363020

I have been developing cryogenic high-resolution X-ray microcalorimeter spectrometers onboard X-ray astronomy satellite. It was achieved as the Resolve instrument onboard XRISM, which was launched in September, 2023.

Here are research themes I can provide. (1) Analyze high-resolution X-ray spectroscopy data obtained by XRISM satellite, and research motion of the hot gas in clusters of galaxies, in order to understand the formation of the large-scale structures of the Universe. (2) Conduct experimental studies, in anticipation of LiteBIRD mission, that aims for observing the polarization of the cosmic microwave background radiation.

Message to students: Through the research, develop an understanding of specific natural phenomena, and also learn the process to reach fundamental physics laws that underlie the complex phenomena, together with experimental and/or analytical methods.

Research Interests

 4

Research Areas

 2

Research History

 5

Education

 2

Committee Memberships

 1

Awards

 1

Papers

 176
  • 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
    Publications of the Astronomical Society of Japan, Apr 11, 2025  
    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.
  • 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
    The Astrophysical Journal Letters, 982(1) L5-L5, Mar 12, 2025  
    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.
  • 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
    Nature, 638(8050) 365-369, Feb 12, 2025  
  • 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
    Publications of the Astronomical Society of Japan, Dec 26, 2024  
    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.
  • 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
    The Astrophysical Journal Letters, 977(2) L34-L34, Dec 11, 2024  
    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.
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Misc.

 169
  • 上田周太朗, 一戸悠人, 藤本龍一, 井上翔太, KILBOURNE Caroline, 北山哲, MARKEVITCH Maxim, MCNAMARA Brian, 太田直美, PORTER Scott, 田村隆幸, 田中桂悟, WERNER Norbert
    日本天文学会年会講演予稿集, 2017, 2017  
  • Aharonian, F.A., Akamatsu, H., Akimoto, F., Allen, S.W., Angelini, L., Arnaud, K.A., Audard, M., Awaki, H., Axelsson, M., Bamba, A., Bautz, M.W., Blandford, R.D., Bulbul, E., Brenneman, L.W., Brown, G.V., Cackett, E.M., Chernyakova, M., Chiao, M.P., Coppi, P., Costantini, E., Plaa, J.D., Herder, J.-W.D., Done, C., Dotani, T., Ebisawa, K., Eckart, M.E., Enoto, T., Ezoe, Y., Fabian, A.C., Ferrigno, C., Foster, A.R., Fujimoto, R., Fukazawa, Y., Furuzawa, A., Galeazzi, M., Gallo, L.C., Gandhi, P., Giustini, M., Goldwurm, A., Gu, L., Guainazzi, M., Haba, Y., Hagino, K., Hamaguchi, K., Harrus, I., Hatsukade, I., Hayashi, K., Hayashi, T., Hayashida, K., Hiraga, J., Hornschemeier, A.E., Hoshino, A., Hughes, J.P., Ichinohe, Y., Iizuka, R., Inoue, H., Inoue, S., Inoue, Y., Ishibashi, K., Ishida, M., Ishikawa, K., Ishisaki, Y., Itoh, M., Iwai, M., Iyomoto, N., Kaastra, J.S., Kallman, T., Kamae, T., Kara, E., Kataoka, J., Katsuda, S., Katsuta, J., Kawaharada, M., Kawai, N., Kelley, R.L., Khangulyan, D., Kilbourne, C.A., King, A.L., Kitaguchi, T., Kitamoto, S., Kitayama, T., Kohmura, T., Kokubun, M., Koyama, S., Koyama, K., Kretschmar, P., Krimm, H.A., Kubota, A., Kunieda, H., Laurent, P., Lebrun, F., Lee, S.-H., Leutenegger, M.A., Limousin, O., Loewenstein, M., Long, K.S., Lumb, D.H., Madejski, G.M., Maeda, Y., Maier, D., Makishima, K., Markevitch, M., Matsumoto, H., Matsushita, K., McCammon, D., McNamara, B.R., Mehdipour, M., Miller, E.D., Miller, J.M., Mineshige, S., Mitsuda, K., Mitsuishi, I., Miyazawa, T., Mizuno, T., Mori, H., Mori, K., Moseley, H., Mukai, K., Murakami, H., Murakami, T., Mushotzky, R.F., Nakagawa, T., Nakajima, H., Nakamori, T., Nakano, T., Nakashima, S., Nakazawa, K., Nobukawa, K., Nobukawa, M., Noda, H., Nomachi, M., Dell, S.L.O., Odaka, H., Ohashi, T., Ohno, M., OKajima, T., Ota, N., Ozaki, M., Paerels, F., Paltani, S., Parmar, A., Petre, R., Pinto, C., Pohl, M., Porter, F.S., Pottschmidt, K., Ramsey, B.D., Reynolds, C.S., Russell, H.R., Safi-Harb, S., Saito, S., Sakai, K., Sameshima, H., Sasaki, T., Sato, G., Sato, K., Sato, R., Sawada, M., Schartel, N., Serlemitsos, P.J., Seta, H., Shidatsu, M., Simionescu, A., Smith, R.K., Soong, Y., Stawarz, Ł., Sugawara, Y., Sugita, S., Szymkowiak, A.E., Tajima, H., Takahashi, H., Takahashi, T., Takeda, S., Takei, Y., Tamagawa, T., Tamura, K., Tamura, T., Tanaka, T., Tanaka, Y., Tanaka, Y., Tashiro, M., Tawara, Y., Terada, Y., Terashima, Y., Tombesi, F., Tomida, H., Tsuboi, Y., Tsujimoto, M., Tsunemi, H., Tsuru, T., Uchida, H., Uchiyama, H., Uchiyama, Y., Ueda, S., Ueda, Y., Ueno, S., Uno, S., Urry, C.M., Ursino, E., Vries, C.P.D., Watanabe, S., Werner, N., Wik, D.R., Wilkins, D.R., Williams, B.J., Yamada, S., Yamaguchi, H., Yamaoka, K., Yamasaki, N.Y., Yamauchi, M., Yamauchi, S., Yaqoob, T., Yatsu, Y., Yonetoku, D., Yoshida, A., Zhuravleva, I., Zoghbi, A.
    Astrophysical Journal Letters, 837(1), 2017  
  • 吉田誠至, 金尾憲一, 宮岡幹夫, 星加俊二, 楢崎勝弘, 恒松正二, 満田和久, 山崎典子, 竹井洋, 藤本龍一, 江副祐一郎
    低温工学・超電導学会講演概要集, 93rd, 2016  
  • 吉田誠至, 金尾憲一, 恒松正二, 満田和久, 山崎典子, 竹井洋, 藤本龍一, 江副祐一郎
    低温工学・超電導学会講演概要集, 93rd, 2016  
  • Caroline A. Kilbourne, Joseph S. Adams, Petar Arsenovic, Travis Ayers, Meng P. Chiao, Michael J. DiPirro, Megan E. Eckart, Ryuichi Fujimoto, John D. Kazeva, Richard L. Kelley, Kari L. Kripps, Bruce Lairson, Maurice A. Leutenegger, Heidi Lopez, Dan McCammon, Daniel S. McGuinness, Kazuhisa Mitsuda, Samuel J. Moseley, F. Scott Porter, Andrea N. Schweiss, Yoh Takei, Rosemary S. Thorpe, Tomomi Watanabe, Noriko Y. Yamasaki, Seiji Yoshida
    SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY, 9905, 2016  Peer-reviewed
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    Proceedings of SPIE - The International Society for Optical Engineering, 8443, Dec 1, 2012  
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  • Mitsuda Kazuhisa, Yamasaki Noriko, Takei Yoh, Tsujimoto Masahiro, Ogawa Mina, Sugita Hiroyuki, Sato Yoichi, Shinozaki Keisuke, Okamoto Atsushi, Ohashi Takaya, Ishisaki Yoshitaka, Ezoe Yuichiro, Fujimoto Ryuichi, Hoshino Akio, Tashiro Makoto, Terada Yukikatsu, Kitamoto Shunji, Murakami Hiroshi, Tamagawa Toru, Sato Kosuke, Ota Naomi, Murakami Masahide, Kelley R.L., Kilbourne C.A., Porter F.S., Snedermann G.A., Boyce K.R., DiPirro M.J., Shirron P.J., Gentreau K.C., Brown G.V., McCammon D., Szymkowiak A., Herder J.-W. den, Vries C. de, Costantini E., Paltani S., Pohl M.
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    Proceedings of SPIE - The International Society for Optical Engineering, 7732, 2010  Peer-reviewed
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    AIP Conference Proceedings, 1185 442-445, Dec 1, 2009  
  • Fujimoto Ryuichi, Sato Kosuke, Mitsuda Kazuhisa, Yamasaki Noriko, Takei Yoh, Tsujimoto Masahiro, Sugita Hiroyuki, Sato Yoichi, Shinozaki Keisuke, Ohashi Takaya, Ishisaki Yoshitaka, Ezoe Yuichiro, Murakami Masahide, Tashiro Makoto, Terada Yukikatsu, Tamagawa Toru, Mihara Tatehiro, Kawaharada Madoka, Yamaguchi Hiroya, Kitamoto Shunji, Murakami Hiroshi, Kelley R.L, Kilbourne C.A, Porter F.S, McCammon D, den Herder J.-W
    Meeting abstracts of the Physical Society of Japan, 64(2) 31-31, Aug 18, 2009  
  • 山口 弘悦, 江副 祐一郎, 石川 久美, 大橋 隆哉, 藤本 龍一, 三石 郁之, 吉武 宏, 竹井 洋, 満田 和久, 村上 正秀, 金尾 憲一, 吉田 誠至, 恒松 正二, Shirron Peter, DiPirro Mike, SXSチーム
    日本物理学会講演概要集, 64(2) 31-31, Aug 18, 2009  
  • Takei Y, Mitsuda K, Yamasaki N, Tsujimoto M, Shinozaki K, Sugita H, Sato Y, Fujimoto R, Sato K, Ohashi T, Ishisaki Y, Ezoe Y, Murakami M, Tashiro M. S, Terada Y, Tamagawa T, Mihara T, Kawaharada M, Yamaguchi H, Kitamoto S, Murakami H, Kelley Richard L, Kilbourne C. A, Porter F. S, Shirron P. J, DiPirro M. J, Sneiderman Gary A, McCammon D, Herder J.-W. den, ASTRO-H SXS tea
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  • 佐藤洋一, 杉田寛之, 中川貴雄, 満田和久, 藤本龍一, 村上正秀, 恒松正二, 大塚清見, 金尾憲一
    日本天文学会年会講演予稿集, 2009, 2009  
  • Piro, L., Den Herder, J.W., Ohashi, T., Amati, L., Atteia, J.L., Barthelmy, S., Barbera, M., Barret, D., Basso, S., Boer, M., Borgani, S., Boyarskiy, O., Branchini, E., Branduardi-Raymont, G., Briggs, M., Brunetti, G., Budtz-Jorgensen, C., Burrows, D., Campana, S., Caroli, E., Chincarini, G., Christensen, F., Cocchi, M., Comastri, A., Corsi, A., Cotroneo, V., Conconi, P., Colasanti, L., Cusumano, G., De Rosa, A., Del Santo, M., Ettori, S., Ezoe, Y., Ferrari, L., Feroci, M., Finger, M., Fishman, G., Fujimoto, R., Galeazzi, M., Galli, A., Gatti, F., Gehrels, N., Gendre, B., Ghirlanda, G., Ghisellini, G., Giommi, P., Girardi, M., Guzzo, L., Haardt, F., Hepburn, I., Hermsen, W., Hoevers, H., Holland, A., In'T Zand, J., Ishisaki, Y., Kawahara, H., Kawai, N., Kaastra, J., Kippen, M., De Korte, P.A.J., Kouveliotou, C., Kusenko, A., Labanti, C., Lieu, R., MacCuli, C., Makishima, K., Matt, G., Mazzotta, P., McCammon, D., Méndez, M., Mineo, T., Mitchell, S., Mitsuda, K., Molendi, S., Moscardini, L., Mushotzky, R., Natalucci, L., Nicastro, F., O'Brien, P., Osborne, J., Paerels, F., Page, M., Paltani, S., Pareschi, G., Perinati, E., Perola, C., Ponman, T., Rasmussen, A., Roncarelli, M., Rosati, P., Ruchayskiy, O., Quadrini, E., Sakurai, I., Salvaterra, R., Sasaki, S., Sato, G., Schaye, J., Schmitt, J., Sciortino, S., Shaposhnikov, M., Shinozaki, K., Spiga, D., Suto, Y., Tagliaferri, G., Takahashi, T., Takei, Y., Tawara, Y., Tozzi, P., Tsunemi, H., Tsuru, T., Ubertini, P., Ursino, E., Viel, M., Vink, J., White, N., Willingale, R., Wijers, R., Yoshikawa, K., Yamasaki, N.
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    日本天文学会年会講演予稿集, 2008 177, Feb 20, 2008  
  • M. Pavlinsky, R. Sunyaev, E. Churazov, M. Gilfanov, A. Vikhlinin, G. Hasinger, P. Predehl, K. Mitsuda, R. Kelley, D. McCammon, T. Ohashi, J. W. den Herder, B. Ramsey, M. Gubarev, S. O'Dell, R. Fujimoto
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    日本天文学会年会講演予稿集, 2008, 2008  
  • 藤本龍一, 満田和久, 山崎典子, 篠崎慶亮, 竹井洋, 中川貴雄, 杉田寛之, 佐藤洋一, 大橋隆哉, 石崎欣尚, 江副祐一郎, 村上正秀, 田代信, 北本俊二, 玉川徹, 川原田円, 三原建弘, KELLEY R. L., KILBOURNE C. A., PORTER F. S., MCCAMMON D., DEN HERDER J.-W.
    日本天文学会年会講演予稿集, 2008, 2008  
  • 篠崎慶亮, 満田和久, 山崎典子, 竹井洋, 中川貴雄, 杉田寛之, 佐藤洋一, 藤本龍一, 大橋隆哉, 石崎欣尚, 江副祐一郎, 村上正秀, 田代信, 北本俊二, 玉川徹, 川原田円, 三原建弘, 平林誠之, 金尾憲一, 吉田誠至, KELLEY R., KILBOURNE C., PORTER F. S., MCCAMMON D., DEN HERDER Jan-Willem
    日本天文学会年会講演予稿集, 2008, 2008  
  • 梨本拓郎, 村上敏夫, 藤本龍一, 米徳大輔, 大熊由似, 中島貴一, 小林行泰, 村上浩, 中川貴雄, 松原英雄, 中村卓史
    日本天文学会年会講演予稿集, 2008, 2008  
  • 竹井洋, 木村俊介, 満田和久, 田村隆幸, 山崎典子, 大橋隆哉, 藤本龍一, MILLER Eric D., BREGMAN Joel N.
    日本天文学会年会講演予稿集, 2008, 2008  
  • Takei, Y., Miller, E.D., Bregman, J.N., Kimura, S., Ohashi, T., Mitsuda, K., Tamura, T., Yamasaki, N.Y., Fujimoto, R.
    Astrophysical Journal, 680(2) 1049-1052, 2008  
  • KANAO Ken-ichi, OTSUKA Kiyomi, TSUNEMATSU Shoji, NARASAKI Katsuhiro, MITSUDA Kazuhisa, FUJIMOTO Ryuichi
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    Meeting abstracts of the Physical Society of Japan, 62(2) 110-110, Aug 21, 2007  
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    The Astronomical herald, 100(7) 321-329, Jun 20, 2007  
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    IEEE Nuclear Science Symposium Conference Record, 4 2526-2531, 2007  
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    OPTICS FOR EUV, X-RAY, AND GAMMA-RAY ASTRONOMY III, 6688(No.) 4, 2007  
  • Mitsuda, K., Fujimoto, R., Yamasaki, N.Y., Yoshino, T., Hagihara, T., Masui, K., Bauer, M., Takei, Y., McCammon, D., Daniel Wang, Q., Yao, Y.
    Progress of Theoretical Physics Supplement, (169) 79-83, 2007  
  • Kelley, R.L., Mitsuda, K., Allen, C.A., Arsenovic, P., Audley, M.D., Bialas, T.G., Boyce, K.R., Boyle, R.F., Breon, S.R., Brown, G.V., Cottam, J., Dipirro, M.J., Fujimoto, R., Furusho, T., Gendreau, K.C., Gochar, G.G., Gonzalez, O., Hirabayashi, M., Holt, S.S., Inoue, H., Ishida, M., Ishisaki, Y., Jones, C.S., Keski-Kuha, R., Kilbourne, C.A., McCammon, D., Morita, U., Moseley, S.H., Mott, B., Narasaki, K., Ogawara, Y., Ohashi, T., Ota, N., Panek, J.S., Porter, F.S., Serlemitsos, A., Shirron, P.J., Sneiderman, G.A., Szymkowiak, A.E., Takei, Y., Tveekrem, J.L., Volz, S.M., Yamamoto, M., Yamasaki, N.Y.
    Publications of the Astronomical Society of Japan, 59(1 SPEC. ISS.) S77-S112, 2007  
  • Takei, Y., Ohashi, T., Henry, J.P., Mitsuda, K., Fujimoto, R., Tamura, T., Yamasaki, N.Y., Hayashida, K., Tawa, N., Matsushita, K., Bautz, M.W., Hughes, J.P., Madejski, G.M., Kelley, R.L., Arnaud, K.A.
    Publications of the Astronomical Society of Japan, 59(1 SPEC. ISS.) S339-S349, 2007  
  • Maeda, Y., Ebara, M., Fujimoto, R., Hayashi, T., Inoue, H., Ishisaki, Y., Mori, H., Okada, S., Suzuki, K., Uchiyama, Y., Serlemitsos, P.J., Soong, Y., Chan, K.-W., Okajima, T., Lehan, J.P., Itoh, K., Itoh, A., Yokoyama, Y., Itoh, Y., Nakamura, R., Ishida, M., Hayakawa, A., Inoue, C., Okuma, S., Kubota, R., Suzuki, M., Osawa, T., Yamashita, K., Kunieda, H., Tawara, Y., Ogasaka, Y., Furuzawa, A., Tamura, K., Shibata, R., Haba, Y., Naitou, M., Misaki, K., Iizuka, R.
    Progress of Theoretical Physics Supplement, (169) 322-325, 2007  
  • Tsuru, T.G., Ozawa, M., Hyodo, Y., Matsumoto, H., Koyama, K., Awaki, H., Fujimoto, R., Griffiths, R., Kilbourne, C., Matsushita, K., Mitsuda, K., Ptak, A., Ranalli, P., Yamasaki, N.Y.
    Publications of the Astronomical Society of Japan, 59(1 SPEC. ISS.) S269-S282, 2007  
  • KANAO Ken-ichi, OTSUKA Kiyomi, TSUNEMATSU Shoji, NARASAKI Katsuhiro, MITSUDA Kazuhisa, FUJIMOTO Ryuichi
    The Symposium on Stirlling Cycle, 2006(10) 73-74, Oct 19, 2006  
    Cryogenic cooling is useful to most detectors in astronomical and atmospheric observation for improving the sensitivity and reducing the background noise. Recently cryocoolers are often adopted as cooling devices. This paper describes a single stage Stirling cryocooler. It is designed, manufactured and tested for space borne mission. The typical cooling power is 2W at 80K with 50W input. The cooler on the X-ray telescope satellite "Suzaku" was launched July 2005. It is operating over 1 year without any trouble. On the other hand, a cooler achieved 50,000 hour operation in the lifetime test on the ground. Same type coolers will be launched on the lunar explorer and the Venus orbiter of Japan
  • 田和憲明, 林田清, 山口弘悦, 竹井洋, 藤本龍一, 海老沢研, 中澤知洋, 石崎欣尚, 水野恒史, 深澤泰司
    日本天文学会年会講演予稿集, 2006 254, Aug 20, 2006  
  • 田和 憲明, 林田 清, 山口 弘悦, 竹井 洋, 藤本 龍一, 海老沢 研, 中澤 知洋, 石崎 欣尚, 水野 恒史, 深澤 泰司
    日本物理学会講演概要集, 61(2) 76-76, Aug 18, 2006  
  • Fujimoto Ryuichi, Mitsuda Kazuhisa, Takei Yoh, McCammon Dan, Bauer Michael, Porter F. Scott, Ishisaki Yoshitaka, the Suzaku team
    Meeting abstracts of the Physical Society of Japan, 61(2) 72-72, Aug 18, 2006  
  • Takei Y, Mitsuda K, Fujimoto R, Ohashi T, Henry J.Patrick, Tamura T, Yamasaki N.Y
    Meeting abstracts of the Physical Society of Japan, 61(1) 87-87, Mar 4, 2006  
  • T. Ohashi, M. Ishida, S. Sasaki, Y. Ishisaki, K. Mitsuda, N. Y. Yamasaki, R. Fujimoto, Y. Takei, Y. Tawara, A. Furuzawa, Y. Suto, Y. Yoshikawa, H. Kawayara, N. Kawai, T. G. Tsuru, K. Matsushita, T. Kitayama
    Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, Pts 1 and 2, 6266(No.) G2660-G2660, 2006  
  • 江副祐一郎, 輿石真樹, 吉野友崇, 三田信, 藤本龍一, 山崎典子, 満田和久, 藤森玉行, 大島泰, 石崎欣尚, 大橋隆哉, 高野貴之, 前田龍太郎
    応用物理学関係連合講演会講演予稿集, 53rd(1), 2006  
  • Yoshino T., Yoshida K., Hagihara T., Ishisaki Y., Morita U., Sato K., Mitsuda K., Yamasaki N., Fujimoto R.
    Meeting abstracts of the Physical Society of Japan, 60(2) 36-36, Aug 19, 2005  

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