论文标题
NGC 4258中的重力红移检测及其黑洞质量比率的估计
Toward the Gravitational Redshift Detection in NGC 4258 and the Estimation of its Black Hole Mass-to-Distance Ratio
论文作者
论文摘要
我们从第一原则构建一种一般相对论方法来研究Schwarzschild黑洞（BH）旋转曲线，并估计NGC 4258主动银河核的质量与距离之比，以天体物理可观察的数量。提出的方法使人们可以清楚地区分和量化对总红移表达的一般和特殊相对论的贡献。总相对论红移/蓝光包括三个组成部分：由于BH在其附近的质量所产生的时空曲率而引起的重力红移，这是光子的当地多普勒效应以及由于特殊的相对性增强而造成的红移造成的运动转移，并描述了一个与之相位的运动。我们将我们的方法应用于NGC 4258主动星系的吸积盘上的最大红移水兆剂测量值的最大数据集，并使用这种一般相对论方法来估计其BH质量与距离比：M/d =（0.5326 +/- 0.00022）x 10^7 solar solar salar salar salar质量/mpc。
We construct from first principles a general relativistic approach to study Schwarzschild black hole (BH) rotation curves and estimate the mass-to-distance ratio of the active galactic nucleus of NGC 4258 in terms of astrophysical observable quantities. The presented method allows one to clearly distinguish and quantify the general and special relativistic contributions to the total redshift expression. The total relativistic redshift/blueshift comprises three components: the gravitational redshift due to the spacetime curvature generated by the mass of the BH in its vicinity, the kinematic shift, originated by the photons' local Doppler effect, and the redshift due to a special relativistic boost that describes the motion of a galaxy from a distant observer. We apply our method to the largest data set of highly redshifted water megamaser measurements on the accretion disk of the NGC 4258 active galaxy and use this general relativistic method to estimate its BH mass-to-distance ratio: M/D = (0.5326 +/- 0.00022) x 10^7 solar masses/Mpc.
