论文标题
恒星质量黑洞GRS grs 1915+105的模糊的，seyfert-2的状态，磁盘风失败引起
An Obscured, Seyfert-2-like State of the Stellar-mass Black Hole GRS 1915+105 Caused by Failed Disk Winds
论文作者
论文摘要
我们报道了在小说，高度模糊的状态中获得的恒星质量黑洞GRS GRS GRS+105的Chandra Grainings光谱。当来源进入该状态时，通过强吸收线检测到了密集的，巨大的积聚盘风。光电离模型表明它必须源于中央发动机附近，即来自外积盘的数量级。在此阶段，强，几乎正弦通量的变化产生了一个关键的见解：当风柱密度相对较低时，风是蓝色的，但随着康普顿厚阈值的速度而变成红变。风似乎没有达到局部逃生速度。从这个意义上讲，这是“失败的风”。后来的观察结果表明，该磁盘最终无法使中央发动机避开气体，从而导致严重遮盖和康普顿厚的状态，其特征是非常强大的Fe K排放线。实际上，这些后来的光谱是使用为晦涩的AGN开发的模型成功描述的。我们以GRS 1915+105在其“晦涩的状态”与Seyfert-2和Compton-Thick-Thick AGN的深处讨论我们的结果，并探索我们的观察结果如何影响我们对巨大黑洞的积聚和掩盖的理解。
We report on Chandra gratings spectra of the stellar-mass black hole GRS 1915+105 obtained during a novel, highly obscured state. As the source entered this state, a dense, massive accretion disk wind was detected through strong absorption lines. Photionization modeling indicates that it must originate close to the central engine, orders of magnitude from the outer accretion disk. Strong, nearly sinusoidal flux variability in this phase yielded a key insight: the wind is blue-shifted when its column density is relatively low, but red-shifted as it approaches the Compton-thick threshold. At no point does the wind appear to achieve the local escape velocity; in this sense, it is a "failed wind." Later observations suggest that the disk ultimately fails to keep even the central engine clear of gas, leading to heavily obscured and Compton-thick states characterized by very strong Fe K emission lines. Indeed, these later spectra are successfully described using models developed for obscured AGN. We discuss our results in terms the remarkable similarity of GRS 1915+105 deep in its "obscured state" to Seyfert-2 and Compton-thick AGN, and explore how our understanding of accretion and obscuration in massive black holes is impacted by our observations.
