Transient Black Hole Binaries
Transient Black Hole Binaries
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DOI：
10.1007/978-3-662-52859-4_2
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
T. Belloni;S. Motta
中科院分区：
文献类型：
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作者：
T. Belloni;S. Motta
在过去的二十年里，我们对瞬态黑洞双星系统中观察到的复杂现象学的理解有了很大的提高，特别是由于罗西X射线计时探测器卫星的活动，以及许多其他X射线天文台和地面无线电，光学和红外设施的观测。吸积本身不能准确地描述与黑洞瞬变相关的复杂行为，现在很清楚，在这些系统爆发演化的不同阶段所看到的不同种类（通常是大量的）流出所起的作用与吸积过程本身所起的作用一样重要。最初在X射线中确定的光谱定时状态，基本上是基于所观察到的吸积效应，已经获得了新的重要性，因为它们现在可以在相干图像中描述在其他波长处观察到的现象，其中喷射过程的影响最明显。特别关注在X射线波段看到的现象学，我们回顾了我们的黑洞瞬变的知识，描述了在爆发过程中通过观察到的光谱定时属性的演变在发挥吸积-喷射连接的当前状态。虽然我们主要集中在观测方面的全球X射线瞬态图片，我们也提供物理洞察力，它通过审查（如果可用）的理论解释和模型，提出解释所观察到的现象。
The last two decades have seen a great improvement in our understanding of the complex phenomenology observed in transient black hole binary systems, especially thanks to the activity of the Rossi X-ray Timing Explorer satellite, complemented by observations from many other X-ray observatories and ground-based radio, optical and infrared facilities. Accretion alone cannot describe accurately the intricate behaviour associated with black hole transients, and it is now clear that the role played by different kinds of (often massive) outflows seen at different phases of the outburst evolution of these systems is as fundamental as the one played by the accretion process itself. The spectral-timing states originally identified in the X-rays and fundamentally based on the observed effect of accretion have acquired new importance as they now allow to describe within a coherent picture the phenomenology observed at other wavelength, where the effects of ejection processes are most evident. With a particular focus on the phenomenology seen in the X-ray band, we review the current state of the art of our knowledge of black hole transients, describing the accretion–ejection connection at play during outbursts through the evolution of the observed spectral-timing properties. Although we mainly concentrate on the observational aspects of the global X-ray transient picture, we also provide physical insight to it by reviewing (when available) the theoretical explanations and models proposed to explain the observed phenomenology.