论文标题
黑孔包围的黑孔的积聚磁盘发光度
Accretion disk luminosity for black holes surrounded by dark matter
论文作者
论文摘要
我们考虑浸入暗物质包膜中的静态黑洞时空的观察特性。因此，我们研究了暗物质的存在引起的几何修饰如何影响黑洞的吸积盘的光度。我们表明，如果在某些条件下被暗物质包围，则真空中的黑洞产生的相同磁盘的光度可能会产生。特别是，我们证明了暗物质的存在会显着改变磁盘的发光度，这表明如果将远处的超质量黑洞估计，如果将它们浸入暗物质中，则可能会改变它们。我们认为，在更现实的场景中产生了类似的效果，我们讨论了与暗物质镜头有关的折射率。因此，我们展示这可能有助于解释早期宇宙中超质量黑洞的光度。
We consider the observational properties of a static black hole space-time immersed in a dark matter envelope. We thus investigate how the modifications to geometry, induced by the presence of dark matter affect the luminosity of the black hole's accretion disk. We show that the same disk's luminosity produced by a black hole in vacuum may be produced by a smaller black hole if surrounded by dark matter under certain conditions. In particular, we demonstrate that the luminosity of the disk is markedly altered by dark matter's presence, suggesting that mass estimation of distant super-massive black holes may be changed if they are immersed in dark matter. We argue that a similar effect holds in more realistic scenarios and we discuss about the refractive index related to dark matter lensing. Hence we show how this may help explain the observed luminosity of super-massive black holes in the early universe.
