Thin accretion disk around the distorted Schwarzschild black hole

TL;DR

This paper models a relativistic, optically thick, thin accretion disk around a distorted Schwarzschild black hole, analyzing how external matter distortions affect disk properties compared to the standard Schwarzschild case.

Contribution

It introduces a new model of accretion disks around distorted Schwarzschild black holes, incorporating external matter effects up to quadrupole distortions.

Findings

Distortion affects the disk's physical characteristics.

Comparison shows differences from the standard Schwarzschild disk.

External matter influences the disk structure.

Abstract

We construct the relativistic standard steady, optically thick, cold and geometrically thin accretion disk around a distorted Schwarzschild black hole. The distortion of this static and axially symmetric black hole solution, is connected to an external distribution of matter. If the effects due to the rotation are negligible, this distribution can describe the exterior of any axially symmetric astrophysical model. Also, the distortion could be related to the outer parts of the accretion disk. We study the effects due to a distortion up to the quadrupole, and compare the physical characteristics of this disk to the usual Schwarzschild case.