| 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 |
Rapid timing studies of black hole binaries in Optical and X-rays: correlated and non-linear variability |
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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 |
accretion: stars - individual: GX339-4 - stars: X-rays: binaries - stars: optical: variable - black holes |
| 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 |
牧島, 一夫
Gandhi, Poshak
Makishima, Kazuo
Durant, Martin
Fabian, Andrew
Dhillon, Vik
Marsh, Tom
Miller, Jon
Shahbaz, Tariq
Spruit, Henk
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| 著者所属 |
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理化学研究所 |
| 著者所属 |
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理化学研究所 |
| 著者所属（英） |
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en |
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RIKEN Cosmic Radiation Laboratory |
| 著者所属（英） |
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en |
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RIKEN Cosmic Radiation Laboratory |
| 著者所属（英） |
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en |
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Instituto de Astrofisica de Canarias |
| 著者所属（英） |
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en |
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Institute of Astronomy |
| 著者所属（英） |
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en |
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Department of Physics and Astronomy, University of Sheffield |
| 著者所属（英） |
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en |
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Department of Physics, University of Warwick |
| 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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Instituto de Astrofisica de Canarias |
| 著者所属（英） |
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en |
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Max-Planck-Institut fur Astrophysik |
| 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. 256-259,
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 |
In one of the fastest multi-wavelength timing studies of black hole X-ray binaries (BHBs) with large telescopes to date, we have discovered correlated optical and X-ray variability in the low/hard state of the source GX 339-4. Only two other BHBs are currently known to show rapid (sub-second) aperiodic optical flickering: XTE J1118+480 and Swift J1753.5-0127. Our simultaneous VLT/Ultracam and RXTE/PCA data reveal intriguing patterns with characteristic peaks, dips and lags down to very short timescales (less than or approximately 150 ms). Reprocessing can be ruled out as the origin of the aperiodic optical power. Instead, the variability may be driven by synchrotron emission from the inner accretion flow regions, with interactions between the disk, jet and corona resulting in the complex correlation patterns. We also show that both the optical and X-ray lightcurves are intrinsically non-linear, in the sense that the absolute variability r.m.s. amplitude linearly increases with flux. The implication is that variability at both wavelengths is not due to local fluctuations alone, but rather arises as a result of coupling of perturbations over a wide range of radii and timescales. These 'optical and X-ray rms-flux relations' thus provide new constraints to connect the outer disk with the inner hot flow and jet. |
| 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 |
|
内容記述 |
資料番号: AA0064574094 |
| レポート番号 |
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内容記述タイプ |
Other |
|
内容記述 |
レポート番号: JAXA-SP-09-008E |
64574094.pdf (270.7 kB)
