标题： 回顾GR方法估计类星体系统的黑洞参数 显示英文标题

标题： Reviewing the GR Method for Estimating Black Hole Parameters of Megamaser Systems

摘要： 我们回顾了一种广义相对论（GR）方法，用于确定黑洞（BH）的参数：质量-距离比、活动星系核（AGN）的位置和退行速度，这些 AGN 是赛弗特星系，具有绕黑洞运行的吸积盘和水脉泽。 此 GR 方法利用了天体物理观测：从上述脉泽发射的红移和蓝移光子及其在天空中的轨道位置。 为了进行估算，我们实现了一种贝叶斯统计方法来拟合上述观测数据。 本工作的主要结果之一在于解析地表达引力红移，使我们能够量化最靠近黑洞的脉泽发出的光子的红移大小。 我们为几个位于 AGN 核心的黑洞呈现了该量值。 显示英文摘要

摘要： We review a General Relativistic (GR) method to determine the black hole (BH) parameters: mass-to-distance ratio, position and recessional velocity of active galactic nuclei (AGNs) of Seyfert type, which have an accretion disk with water masers circulating around the BH. This GR method makes use of astrophysical observations: the redshifted and the blueshifted photons emitted from the aforementioned masers and their orbital position on the sky. In order to perform the estimations we implement a Bayesian statistical method to fit the above mentioned observational data. One of the main results of this work consists in analytically expressing the gravitational redshift, allowing us to quantify its magnitude for the photons emitted by the closest masers to the black holes. We present this quantity for several BHs hosted at the core of AGNs.