论文标题
用Suzaku和Nustar探测Cygnus X-1的近野树地区
Probing the near-horizon region of Cygnus X-1 with Suzaku and NuSTAR
论文作者
论文摘要
天体物理黑孔是测试爱因斯坦在强场上制度中的总体相对论理论的理想实验室。在此手稿中，我们使用relxill_nk介绍了黑洞二元二元X-1的Suzaku和Nustar光谱的分析。与我们先前对Cygnus X-1进行Nustar数据的研究不同，在这里我们能够约束Johannsen变形参数$α_{13} $。然而，尽管苏扎库提供的铁线附近的能量分辨率很高，但与从其他来源获得的cygnus X-1的Kerr指标的约束并不是很严格，这证实Cygnus X-1是一个复杂的来源。
Astrophysical black holes are ideal laboratories for testing Einstein's theory of general relativity in the strong field regime. In this manuscript, we present an analysis of Suzaku and NuSTAR spectra of the black hole binary Cygnus X-1 using RELXILL_NK. Unlike our previous study on Cygnus X-1 with NuSTAR data, here we are able to constrain the Johannsen deformation parameter $α_{13}$. However, despite the high energy resolution near the iron line provided by Suzaku, our constraints on the Kerr metric from Cygnus X-1 are not very stringent in comparison with those that have been obtained from other sources, confirming that Cygnus X-1 is quite a complicated source.
