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arXiv 0706.3598astro-ph
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黑洞双星中的喷流盘耦合

Jet disc coupling in black hole binaries

Julien Malzac

摘要:

在过去的十年中,多波长观测已经证明了喷流在吸积黑洞双星能量输出中的重要性。所观察到的喷流的存在和吸积流的状态之间的相关性提供了吸积和喷射过程之间的耦合的重要信息。在简要回顾了黑洞双星的性质后,我通过两个特别有趣的例子说明了吸积和弹射之间的联系。首先,天鹅座X-1在“迷你”状态转换期间的积分观测揭示了小时量级时间尺度上的盘喷流耦合。其次,黑洞XTEJ 1118 +480显示出X射线和光辐射之间的复杂相关性。这些相关性被解释为在秒或更短的时间尺度上圆盘和喷流之间的耦合。这些观测结果在当前模式的框架下进行了讨论。

英文摘要:

In the last decade multi-wavelength observations have demonstrated the importance of jets in the energy output of accreting black hole binaries. The observed correlations between the presence of a jet and the state of the accretion flow provide important information on the coupling between accretion and ejection processes. After a brief review of the properties of black hole binaries, I illustrate the connection between accretion and ejection through two particularly interesting examples. First, an INTEGRAL observation of Cygnus X-1 during a 'mini-' state transition reveals disc jet coupling on time scales of orders of hours. Second, the black hole XTEJ1118+480 shows complex correlations between the X-ray and optical emission. Those correlations are interpreted in terms of coupling between disc and jet on time scales of seconds or less. Those observations are discussed in the framework of current models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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