A
Aya Kubota
Researcher at University of Tokyo
Publications - 189
Citations - 11084
Aya Kubota is an academic researcher from University of Tokyo. The author has contributed to research in topics: Black hole & Luminosity. The author has an hindex of 48, co-authored 181 publications receiving 10361 citations. Previous affiliations of Aya Kubota include University of Maryland, College Park & Shibaura Institute of Technology.
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Journal ArticleDOI
Modelling the behaviour of accretion flows in x-ray binaries.
TL;DR: In this article, the authors consider a model where a standard outer accretion disc is truncated at low luminosities, being replaced by a hot, inner flow which also acts as the launching site of the jet.
Journal ArticleDOI
The X-Ray Observatory Suzaku
Kazuhisa Mitsuda,Mark W. Bautz,Hajime Inoue,Richard L. Kelley,Katsuji Koyama,Hideyo Kunieda,Kazuo Makishima,Yoshiaki Ogawara,Robert Petre,Tadayuk Takahashi,Hiroshi Tsunemi,Nicholas E. White,Naohisa Anabuki,Lorella Angelini,Keith A. Arnaud,Hisamitsu Awaki,Aya Bamba,Kevin R. Boyce,Gregory V. Brown,Kai Wing Chan,Jean Cottam,Tadayasu Dotani,John P. Doty,Ken Ebisawa,Yuichiro Ezoe,Andrew C. Fabian,Enectali Figueroa,Ryuichi Fujimoto,Yasushi Fukazawa,Tae Furusho,Akihiro Furuzawa,Keith C. Gendreau,Richard E. Griffiths,Yoshito Haba,Kenji Hamaguchi,Ilana M. Harrus,Günther Hasinger,Isamu Hatsukade,Kiyoshi Hayashida,Patrick 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 Kllbourne,Kenzo Kinugasa,Steve Klssel,Shunji Kitamoto,Mitsuhiro Kohama,Takayoshi Kohmura,Motohide Kokubun,Taro Kotani,J. Kotoku,Aya Kubota,Greg Madejski,Yoshitomo Maeda,Fumiyoshi Makino,Alex Markowitz,Chiho Matsumoto,Hironori Matsumoto,Masaru Matsuoka,Kyoko Matsushita,Dan McCammon,Tatehiko Mihara,Kazutami Misakl,Emi Miyata,Tsunefumi Mizuno,Koji Mori,Hideyuki Mori,Mikio Morii,Harvey Moseley,Koji Mukai,Hiroshi Murakami,Toshio Murakami,Richard Mushotzky,Fumiaki Nagase,M. Namiki,Hitoshi Negoro,Kazuhiro Nakazawa,John A. Nousek,Takashi Okajima,Yasushi Ogasaka,Takaya Ohashi,T. Oshima,Naomi Ota,Masanobu Ozaki,H. Ozawa,Arvind Parmar,W. D. Pence,F. Scott Porter,James Reeves,George R. Ricker,Ikuya Sakurai,Wilton T. Sanders,Atsushi Senda,Peter J. Serlemitsos,Ryo Shibata,Yang Soong,Randall K. Smith,Motoko Suzuki,Andrew Szymkowiak,Hiromitsu Takahashi,Toru 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,M. 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 +142 more
TL;DR: In this paper, the authors summarized the spacecraft, in-orbit performance, operations, and data processing that are related to observations of the Suzaku X-ray observatory, including high-sensitivity wide-band Xray spectroscopy.
Journal ArticleDOI
Hard X-Ray Detector (HXD) on Board Suzaku
Tadayuki Takahashi,Tadayuki Takahashi,K. Abe,Morinobu Endo,Y. Endo,Yuichiro Ezoe,Yasushi Fukazawa,M. Hamaya,S. Hirakuri,Soojing Hong,M. Horii,Hajime Inoue,Hajime Inoue,Naoki Isobe,Takeshi Itoh,Naoko Iyomoto,Tuneyoshi Kamae,Daisuke Kasama,Jun Kataoka,Jun Kataoka,Hiroshi Kato,Madoka Kawaharada,Naomi Kawano,Kengo Kawashima,S. Kawasoe,Tetsuichi Kishishita,Tetsuichi Kishishita,Takao Kitaguchi,Y. Kobayashi,Y. Kobayashi,Motohide Kokubun,J. Kotoku,M. Kouda,M. Kouda,Aya Kubota,Yoshikatsu Kuroda,Greg Madejski,Kazuo Makishima,K. Masukawa,Yukari Matsumoto,Takefumi Mitani,Takefumi Mitani,Ryohei Miyawaki,Tsunefumi Mizuno,Koji Mori,Masanori Mori,M. Murashima,Toshio Murakami,Kazuhiro Nakazawa,H. Niko,Masaharu Nomachi,Y. Okada,Masanori Ohno,K. Oonuki,K. Oonuki,Naomi Ota,Hideki Ozawa,Goro Sato,Goro Sato,Shingo Shinoda,M. Sugiho,M. Suzuki,Koji Taguchi,Hiromitsu Takahashi,I. Takahashi,Shin'ichiro Takeda,Shin'ichiro Takeda,Ken-ichi Tamura,Ken-ichi Tamura,Takayuki Tamura,Takaaki Tanaka,Takaaki Tanaka,C. Tanihata,C. Tanihata,Makoto Tashiro,Yukikatsu Terada,S. Tominaga,Yasunobu Uchiyama,Yasunobu Uchiyama,Shin Watanabe,Shin Watanabe,Kazutaka Yamaoka,Takayuki Yanagida,Daisuke Yonetoku +83 more
TL;DR: The hard X-ray detector (HXD) on board Suzaku as discussed by the authors was designed to achieve an extremely low in-orbit background based on a combination of new techniques, including the concept of well-type active shield counter.
Journal ArticleDOI
The Nature of Ultraluminous Compact X-Ray Sources in Nearby Spiral Galaxies
Kazuo Makishima,Aya Kubota,Tsunefumi Mizuno,Tomohisa Ohnishi,Makoto Tashiro,Yoichi Aruga,Kazumi Asai,Tadayasu Dotani,Kazuhisa Mitsuda,Yoshihiro Ueda,Shin'ichiro Uno,Kazutaka Yamaoka,Ken Ebisawa,Yoshiki Kohmura,Kyoko Okada +14 more
TL;DR: In this paper, the authors make use of the ASCA spectra of seven ultraluminous compact X-ray sources in nearby spiral galaxies: M33 X-8, M81 X-6, IC 342 source 1, Dwingeloo 1 X-1, NGC 1313 source B, and two sources in NGC 4565.
Journal ArticleDOI
The Nature of Ultra-Luminous Compact X-Ray Sources in Nearby Spiral Galaxies
Kazuo Makishima,Aya Kubota,Tsunefumi Mizuno,Tomohisa Ohnishi,Makoto Tashiro,Yoichi Aruga,Kazumi Asai,Tadayasu Dotani,Kazuhisa Mitsuda,Y. Ueda,Shin'ichiro Uno,Kazutaka Yamaoka,Ken Ebisawa,Yoshiki Kohmura,Kyoko Okada +14 more
TL;DR: In this article, the ASCA spectra of seven ultra-luminous compact X-ray sources (ULXs) in nearby spiral galaxies; M33 X-8 (Takano et al. 1994), M81 X-6 (Fabbiano 1988b; Kohmura et al., 1998), IC 342 Source 1 (Okada et al).