The very high state accretion disc structure from the Galactic black hole transient XTE J1550 – 564
The very high state accretion disc structure from the Galactic black hole transient XTE J1550 – 564
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DOI：
10.1111/j.1365-2966.2004.08134.x
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发表时间：
2003-12
影响因子：
4.8
通讯作者：
A. Kubota;Chris Done Riken;U. Durham
中科院分区：
文献类型：
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作者：
A. Kubota;Chris Done Riken;U. Durham
1998年银河系明亮黑洞双星系统XTE J1550-564的爆发被用来约束强康普顿甚高态谱中的吸积盘结构。这些数据表明，盘发射是不容易兼容的恒定面积L / T 4的行为期间看到的热为主的高/软状态和弱comptonised非常高的状态。即使在校正了散射几何的影响之后，盘的温度总是比在非常高的状态下导出的光度所期望的要低得多。最简单的解释是，这表明光学厚盘在强康普顿化的非常高的状态下被截断，因此微不足道地给出了银河系黑洞的低/硬和非常高的状态之间的观测连续性。
The 1998 outburst of the bright Galactic black hole binary system XTE J1550-564 was used to constrain the accretion disc structure in the strongly Comptonised very high state spectra. These data show that the disc emission is not easily compatible with the constant area L / T 4 behaviour seen during the thermal dominated high/soft state and weakly comptonised very high state. Even after correcting for the effects of the scattering geometry, the disc temperature is always much lower than expected for its derived luminosity in the very high state. The simplest interpretation is that this indicates that the optically thick disc is truncated in the strongly Comptonised very high state, so trivially giving the observed continuity of properties between the low/hard and very high states of Galactic black holes.