Strong gravitational lensing of rotating regular black holes in non-minimally coupled Einstein-Yang-Mills theory

Autor: Zhang, Ruanjing, Jing, Jiliang, Peng, Zhipeng, Huang, Qihong
Rok vydání: 2023
Předmět:
Zdroj: Chinese Physics C Vol. 47, No. 10 (2023) 105105
Druh dokumentu: Working Paper
DOI: 10.1088/1674-1137/acf489
Popis: The strong gravitational lensing of a regular and rotating magnetic black hole in non-minimally coupled Einstein-Yang-Mills theory is studied. We find that, with the increase of any characteristic parameters of this black hole, such as the rotating parameter, magnetic charge and EYM parameter, the angular image position and relative magnification decrease while deflection angle and image separation increase. The results will degenerate to that of the Kerr case, R-N case with magnetic charge and Schwarzschild case when we take some specific values for the black hole parameters. The results also show that, due to the small influence of magnetic charge and Einstein-Yang-Mills parameters, it is difficult for current astronomical instruments to tell this black hole apart from a General Relativity one.
Databáze: arXiv