Item type |
会議発表論文 / Conference Paper(1) |
公開日 |
2015-03-26 |
タイトル |
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タイトル |
X-ray monitoring of the Wolf-Rayet binary WR140 with Suzaku |
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言語 |
en |
言語 |
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言語 |
eng |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
stars: Wolf-Rayet - binaries: spectroscopic - stars: WR140 |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_5794 |
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資源タイプ |
conference paper |
著者 |
菅原, 泰晴
前田, 良知
坪井, 陽子
Sugawara, Yasuharu
Maeda, Yoshitomo
Tsuboi, Yohko
Hamaguchi, Kenji
Corcoran, Michael
Pollock, Andy
Moffat, Anthony
Williams, Peredur
Dougherty, Sean
Pittard, Julian
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著者所属 |
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中央大学理工学部物理学科 |
著者所属 |
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宇宙航空研究開発機構宇宙科学研究本部 |
著者所属 |
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中央大学理工学部物理学科 |
著者所属(英) |
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en |
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Department of Physics, Faculty of Science & Engineering, Chuo University |
著者所属(英) |
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en |
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Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA) |
著者所属(英) |
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en |
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Department of Physics, Faculty of Science & Engineering, Chuo University |
著者所属(英) |
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en |
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CRESST and X-ray Astrophysics Laboratory NASA/GSFC |
著者所属(英) |
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en |
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CRESST and X-ray Astrophysics Laboratory NASA/GSFC |
著者所属(英) |
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en |
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European Space Agency, XMM-Newton Science Operations Centre, European Space Astronomy Centre |
著者所属(英) |
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en |
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Departement de Physique, Universite de Montreal |
著者所属(英) |
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en |
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Institute for Astronomy, Royal Observatory |
著者所属(英) |
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en |
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National Research Council of Canada |
著者所属(英) |
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en |
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School of Physics and Astronomy, The University of Leeds |
出版者 |
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出版者 |
宇宙航空研究開発機構 |
出版者(英) |
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出版者 |
Japan Aerospace Exploration Agency (JAXA) |
書誌情報 |
宇宙航空研究開発機構特別資料:
en : JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H
巻 JAXA-SP-09-008E,
p. 198-199,
発行日 2010-02-26
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会議概要(会議名, 開催地, 会期, 主催者等)(英) |
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内容記述タイプ |
Other |
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内容記述 |
The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
We report on preliminary results of the Suzaku observations of the W-R binary WR 140 (WC7+O5I), with the aim of understanding the W-R stellar wind as well as the wind-wind collision shocks. Our observations with exposures of 210 ksec in total were made at four different epochs around periastron passage in Jan. 2009. We detected hard X-ray excess in the HXD band. This is the first time that the hard X-ray excess above 10 keV was detected from a W-R binary. Moreover, we found a part of the soft component is not absorbed even by the dense wind. The spectra can be fitted by three different components, with a stationary soft component at kT approximately 0.1 keV, a high temperature component at kT approximately 3 keV and a harder power-low component. The column density at periastron is a factor of 30 higher than that at pre-periastron, which can be explained as self-absorption of the W-R wind. It is found that the emission measure of high temperature component is not proportional to the inverse of the separation of the two stars. |
内容記述(英) |
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内容記述タイプ |
Other |
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内容記述 |
Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1349-113X |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11984031 |
資料番号 |
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内容記述タイプ |
Other |
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内容記述 |
資料番号: AA0064574071 |
レポート番号 |
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内容記述タイプ |
Other |
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内容記述 |
レポート番号: JAXA-SP-09-008E |