Quantum corrected black holes: Quasinormal modes, scattering, shadows
Abstract
The spherically symmetric deformation of the Schwarzschild solution owing to the quantum corrections to gravity is known as KazakovSolodukhin blackhole metric. Neglecting nonspherical deformations of the background the problem was solved nonperturbatively. Here we analyze the basic characteristics of this geometry, such as: quasinormal modes and greybody factors of fields of various spin and shadow cast by this black hole. The WKB approach and timedomain integration method, which we used for calculation of quasinormal modes, are in a good concordance. The analytical formula for quasinormal modes is deduced in the eikonal regime. The radius of shadow is decreasing when the quantum deformation is turned on.
 Publication:

Physics Letters B
 Pub Date:
 May 2020
 DOI:
 10.1016/j.physletb.2020.135363
 arXiv:
 arXiv:1912.10582
 Bibcode:
 2020PhLB..80435363K
 Keywords:

 General Relativity and Quantum Cosmology;
 Astrophysics  High Energy Astrophysical Phenomena;
 High Energy Physics  Theory
 EPrint:
 6 pages, 3 figures, revtex, some numerical data is corrected, new material is added