| アイテムタイプ |
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 |
Fe K emission lines in neutron star low-mass X-ray binaries |
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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 |
X-rays: binaries - stars: neutron - accretion, accretion disks |
| 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 |
Cackett, M. Edward
Miller, J. M.
Ballantyne, D. R.
Barret, D.
Bhattacharyya, S.
Boutelier, M.
Miller, M. C.
Strohmayer, T. E.
Wijnands, R.
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| 著者所属（英） |
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en |
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Department of Astronomy, University of Michigan |
| 著者所属（英） |
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en |
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Department of Astronomy, University of Michigan |
| 著者所属（英） |
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en |
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Center for Relativistic Astrophysics, School of Physics, Georgia Institute of Technology |
| 著者所属（英） |
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en |
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CESR, CNRS/UPS |
| 著者所属（英） |
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en |
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Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research |
| 著者所属（英） |
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en |
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CESR, CNRS/UPS |
| 著者所属（英） |
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en |
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Department of Astronomy, University of Maryland |
| 著者所属（英） |
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en |
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Astrophysics Science Division, NASA/GSFC |
| 著者所属（英） |
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en |
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Astronomical Institute, University of Amsterdam |
| 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. 248-251,
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 |
Over recent years, Suzaku and XMM-Newton observations of neutron star low-mass X-ray binaries have uncovered broad, asymmetric Fe K emission lines in these sources. It is believed that the lines arise from irradiation of the innermost accretion disk. Thus, the line profile is skewed by relativistic effects present there, leading to a measure of the inner disk radius. We summarize our comprehensive analysis of the spectra from 10 neutron star low-mass X-ray binaries here. We not only fit simple phenomenological models to the spectra, but also a more self-consistent approach using a reflection model wherein a blackbody provides the irradiating flux. Such a model is appropriate for these sources where a blackbody dominates the spectrum from around 8 - 20 keV. A realistic geometry for this reflection would involve the boundary layer (the assumed source of blackbody-like emission) irradiating the inner disk. From our modeling, we only find a small range in inner disk radius (6 - 15 GM/c(exp 2) in the majority of cases), and find no obvious trend with luminosity. One particularly interesting source is the accreting millisecond X-ray pulsar SAX J1808.4-3658. The Fe K emission line in this source allows us to estimate the magnetic field strength in this system to be approximately 3 x 10(exp 8) G, broadly consistent with previous independent estimates. |
| 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: AA0064574092 |
| 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 |
64574092.pdf (464.2 kB)
