Arp 151中黑洞质量的混响映射贝叶斯模型
The Mass of the Black Hole in Arp 151 from Bayesian Modeling of Reverberation Mapping Data
摘要：
超大质量黑洞被认为在星系中心无处不在。测量它们的质量极具挑战性，但对于理解它们在宇宙结构形成和演化中的作用至关重要。我们提出了一个直接测量的质量的黑洞的活动星系核（Arp 151）的基础上的气体的运动负责的广泛的发射线。通过对光谱和光度时间序列的分析和建模，我们发现气体可以很好地描述为一个平均半径为3.99 ± 1.25光日，张角为68.9（+21.4，-17.2）度的圆盘或环面，倾斜角为67.8 ± 7.8度（即更接近正面而不是侧面）。黑洞的质量被推断为10^（6.51 +- 0.28）太阳质量。该方法是完全通用的，可用于确定任意距离的黑洞的质量，从而能够研究它们在宇宙时间内的演化。
英文摘要：
Supermassive black holes are believed to be ubiquitous at the centers of galaxies. Measuring their masses is extremely challenging yet essential for understanding their role in the formation and evolution of cosmic structure. We present a direct measurement of the mass of a black hole in an active galactic nucleus (Arp 151) based on the motion of the gas responsible for the broad emission lines. By analyzing and modeling spectroscopic and photometric time series, we find that the gas is well described by a disk or torus with an average radius of 3.99 +- 1.25 light days and an opening angle of 68.9 (+21.4, -17.2) degrees, viewed at an inclination angle of 67.8 +- 7.8 degrees (that is, closer to face-on than edge-on). The black hole mass is inferred to be 10^(6.51 +- 0.28) solar masses. The method is fully general and can be used to determine the masses of black holes at arbitrary distances, enabling studies of their evolution over cosmic time.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
