THE SPIN OF THE SUPERMASSIVE BLACK HOLE IN NGC 3783
THE SPIN OF THE SUPERMASSIVE BLACK HOLE IN NGC 3783
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DOI：
10.1088/0004-637x/736/2/103
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发表时间：
2011-08-01
影响因子：
4.9
通讯作者：
Volonteri, M.
中科院分区：
文献类型：
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作者：
Brenneman, L. W.;Reynolds, C. S.;Volonteri, M.
Suzaku AGN自旋调查旨在通过深Suzaku瞪星确定附近六个活动星系核（AGN）中的超大质量黑洞自旋，从而使我们第一次看到当地黑洞自旋分布。在这里，我们展示了在这个关键项目的支持下研究的第一个目标的分析，Seyfert星系NGC 3783。尽管多组分热吸收体产生的光谱很复杂，但我们探测和研究了来自内部吸积盘的相对论反射。假设x射线反射来自Kerr黑洞周围的平盘表面，并且在广义相对论的边缘稳定半径内没有x射线反射，我们确定黑洞自旋的下限为>= 0.88（99%置信度）。我们检验了这一结果对分析假设的稳健性，并简要讨论了可能影响通量有限的agn样品的自旋相关选择偏差。
The Suzaku AGN Spin Survey is designed to determine the supermassive black hole spin in six nearby active galactic nuclei (AGNs) via deep Suzaku stares, thereby giving us our first glimpse of the local black hole spin distribution. Here, we present an analysis of the first target to be studied under the auspices of this Key Project, the Seyfert galaxy NGC 3783. Despite complexity in the spectrum arising from a multi-component warm absorber, we detect and study relativistic reflection from the inner accretion disk. Assuming that the X-ray reflection is from the surface of a flat disk around a Kerr black hole, and that no X-ray reflection occurs within the general relativistic radius of marginal stability, we determine a lower limit on the black hole spin of a >= 0.88 (99% confidence). We examine the robustness of this result to the assumption of the analysis and present a brief discussion of spin-related selection biases that might affect flux-limited samples of AGNs.