标题： TXS 2226-184核心处黑洞质量与距离比值的一般相对论估计 显示英文标题

标题： A general relativistic estimation of the black hole mass-to-distance ratio at the core of TXS 2226-184

摘要： 在这项工作中，我们采用广义相对论方法来估算位于TXS 2226-184活动星系核核心的黑洞的质量-距离比 M/D = 3.54^{+0.2}_{-0.2} X 10^4 M_{太阳}/Mpc，以及其赤经偏移量和星系的退行红移（速度）。 我们的统计拟合基于由水脉泽发射的光子频率偏移及其在活动星系核吸积盘内围绕黑洞中心圆周运动时的轨道位置。 通过考虑之前报告的星系距离，我们将黑洞质量拟合的结果与基于质量-光度相关性的估计进行了比较。 我们发现，利用广义相对论方法并通过统计拟合得到的TXS 2226-184核心处的黑洞质量 \( M = 3.67^\{{+0.2}\}_\{{-0.2}\} \times 10^6 M_\{{太阳}\} \)，约为根据质量-光度关系计算出的黑洞质量 \( M_\{{BH}\} = 6.24^\{{+3.6}\}_\{{-2.3}\} \times 10^6 M_\{{太阳}\} \) 的0.6倍。 显示英文摘要

摘要： In this work we make use of a general relativistic method to estimate the mass-to-distance ratio M/D = 3.54^{+0.2}_{-0.2} X 10^4 M_{sun}/Mpc of the black hole hosted at the core of the active galactic nucleus of TXS 2226-184, along with its Right Ascension offset and the recession redshift (velocity) of the galaxy. Our statistical fit is based on the frequency shift of photons emitted by water masers and their orbital positions when circularly revolving around the black hole center within the accretion disk of the active galactic nucleus. By taking into account a previously reported distance to the galaxy, we compare the result of the black hole mass fit to an estimate based on a mass-luminosity correlation. We find that the black hole mass at the core of TXS 2226-184 obtained with the aid of the statistical fit using the general relativistic method, M = 3.67 ^{+0.2}_{-0.2} X 10^6 M_{sun}, is approximately 0.6 times the black hole mass, M_{BH} = 6.24^{+3.6}_{-2.3} X 10^6 M_{sun}, computed with the mass-luminosity correlation.