论文标题
反射模型对积聚黑洞特性的估计的影响
Impact of the reflection model on the estimate of the properties of accreting black holes
论文作者
论文摘要
黑洞二进制文件和AGN的X射线光谱中的相对论反射特征源自热的电晕，源于吸积盘的内部。在存在高质量数据并使用正确的天体物理模型的情况下，X射线反射光谱可以是探测强重力区域，研究积聚物质的形态，测量黑洞旋转甚至测试爱因斯坦在强场上的一般相对性理论的强大工具。当今有一些相对论的反思模型，并由不同的群体开发。所有这些模型都呈现出一些差异，并具有许多简化的系统不确定性。问题是，不同的模型是否提供了黑洞特性的不同度量以及如何为整个X射线天文学界达成共同模型。在本文中，我们通过分析了GRS 1915+105中对恒星质量黑洞的观察以及同时XMM-Newton和Nustar观察到MCG-6-6-30-15中的超大质量黑洞的观察，开始探索这个问题。这些来源的相对论反射组件配备了Relconv $ \ times $ reflionx，relconv $ \ times $ xillver和relxill。我们讨论差异和对积聚黑洞的研究的影响。
Relativistic reflection features in the X-ray spectra of black hole binaries and AGNs originate from illumination of the inner part of the accretion disk by a hot corona. In the presence of high quality data and with the correct astrophysical model, X-ray reflection spectroscopy can be quite a powerful tool to probe the strong gravity region, study the morphology of the accreting matter, measure black hole spins, and even test Einstein's theory of general relativity in the strong field regime. There are a few relativistic reflection models available today and developed by different groups. All these models present some differences and have a number of simplifications introducing systematic uncertainties. The question is whether different models provide different measurements of the properties of black holes and how to arrive at a common model for the whole X-ray astronomy community. In this paper, we start exploring this issue by analyzing a Suzaku observation of the stellar-mass black hole in GRS 1915+105 and simultaneous XMM-Newton and NuSTAR observations of the supermassive black hole in MCG-6-30-15. The relativistic reflection component of these sources is fitted with RELCONV$\times$REFLIONX, RELCONV$\times$XILLVER, and RELXILL. We discuss the differences and the impact on the study of accreting black holes.
