论文标题
通过对其热光谱和反射特征的联合分析，用GX 339-4测试Kerr黑洞假设
Testing the Kerr Black Hole Hypothesis with GX 339-4 by a combined analysis of its thermal spectrum and reflection features
论文作者
论文摘要
我们分析了黑洞二进制GX 339-4的Nustar和Swift的同时观察，其中我们清楚地检测到了强大的热成分和突出的相对论反射特征。我们采用NKBB和Relxill_NK，分别是热和反射模型的艺术状态来检验Kerr黑洞假设。我们获得了Johannsen变形参数$α_{13} $：$α_{13} = -0.012 _ { - 0.039}^{+0.011} $（Lamppost Coronal deegometry）和$α__{13} = 13} = -13} = -13} = -0.039} = -0.039} = -0.012 _ {13} = -13} = -0.039} = -0.039} = -13} = -0.039} = -0.039} = -0.039} = -13} = -13} = 13} = -0.010 _ { - 0.018}^{+0.024} $（破碎的幂律发射率配置文件）在90％的置信度上，其中Kerr Metric对应于$α__{13} = 0 $。我们通过将数据与不同的模型拟合来研究系统的不确定性。
We analyze simultaneous observations with NuSTAR and Swift of the black hole binary GX 339-4 in which we clearly detect both a strong thermal component and prominent relativistic reflection features. We employ NKBB and RELXILL_NK, which are the state of the art of, respectively, the thermal and reflection models to test the Kerr black hole hypothesis. We obtain unprecedented precise measurements of the Johannsen deformation parameter $α_{13}$: $α_{13} = -0.012_{-0.039}^{+0.011}$ (lamppost coronal geometry) and $α_{13} = -0.010_{-0.018}^{+0.024}$ (broken power-law emissivity profile) at a 90% confidence level, where the Kerr metric corresponds to $α_{13} = 0$. We investigate the systematic uncertainties by fitting the data with different models.
