论文标题
灯柱具有流出和CYG X-1的硬状态
Lamp-post with an outflow and the hard state of Cyg X-1
论文作者
论文摘要
在积聚黑洞的硬状态下观察到的相对论反射通常相对于主要的组分分量显示出弱幅度，这可能是由于二张截断或X射线源的非异常副本引起的，例如由于运动远离反射器。我们在这里研究后一种情况，假设X射线源位于Kerr黑洞的对称轴上。我们讨论与反射辐射的正确计算相关的效果，并在数据分析模型中实现它们，Reflkerrv。我们将其应用于硬状态下Cyg X-1的同时对CYG X-1的观察，我们发现它非常适合被源以0.36℃移开的未截断盘的辐射。但是，我们在几何形状中发现了一个更好的解决方案，该溶液紧密近似于内部热流辐射的截短光盘。在此解决方案中，我们要么仍然需要下层次流出流出，要么与观察者相反的源必须有助于直接观察到的辐射。我们还讨论了Reflkerrv和RelxilllPCP中流出效应的实现之间的差异。
Relativistic reflection observed in the hard states of accreting black holes often shows a weak amplitude relative to the main Comptonization component, which may result from either a disc truncation or a non-isotropy of the X-ray source, e.g. due to a motion away from the reflector. We investigate here the latter case, assuming that the X-ray source is located on the symmetry axis of the Kerr black hole. We discuss effects relevant to a proper computation of the reflected radiation and we implement them in the model for data analysis, reflkerrV. We apply it to the simultaneous Suzaku and NuSTAR observation of Cyg X-1 in the hard state and we find a good fit for an untruncated disc irradiated by the source moving away from it at 0.36c. However, we find a slightly better solution in a geometry closely approximating the truncated disc irradiated by an inner hot flow. In this solution we either still need a subrelativistic outflow or the source opposite to the observer must contribute to the directly observed radiation. We also discuss differences between the implementation of the outflow effect in reflkerrV and in relxilllpCp.
