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

Abstract 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 a , magnetic charge q and EYM pa...

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Published inChinese physics C Vol. 47; no. 10; p. 105105
Main Authors Zhang 张, Ruanjing 软静, Jing 荆, Jiliang 继良, Peng 彭, Zhipeng 志鹏, Huang 黄, Qihong 启洪
Format Journal Article
LanguageEnglish
Published 01.10.2023
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Summary:Abstract 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 a , magnetic charge q and EYM parameter λ , the angular image position and relative magnification decrease while deflection angle and image separation s increase. The results will degenerate to that of the Kerr case, RN 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 EYM parameters, it is difficult for current astronomical instruments to tell this black hole apart from a General Relativity one.
ISSN:1674-1137
2058-6132
DOI:10.1088/1674-1137/acf489