论文标题

爱因斯坦方程的解决方案,用于被银河系光环包围的黑洞

Solutions of the Einstein equations for a black hole surrounded by a galactic halo

论文作者

Konoplya, R. A., Zhidenko, A.

论文摘要

在这里将银河系光环中的物质分布的各种概况(例如navarro-frenk-white,Burkert,Hernquist,Moore,Taylor-Silk等)视为爱因斯坦方程的源术语。我们求解这些方程,并找到代表浸入银河晕中的中央黑洞的度量的精确溶液。即使在一般情况下,当银河系的质量比光环中的特征性量表小得多时,解决方案是数值,非常准确的一般分析度量,其中包括所有特定模型。

Various profiles of matter distribution in galactic halos (such as Navarro-Frenk-White, Burkert, Hernquist, Moore, Taylor-Silk and others) are considered here as the source term for the Einstein equations. We solve these equations and find exact solutions which represent the metric of a central black hole immersed in a galactic halo. Even though in the general case the solution is numerical, very accurate general analytical metric, which includes all the particular models, are found in the astrophysically relevant regime, when the mass of the galaxy is much smaller than the characteristic scale in the halo.

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