Black hole evaporation process and Tangherlini-Reissner-Nordstrom black holes shadow

被引:2
作者
Singh, Balendra Pratap [1 ]
机构
[1] UPES, SOAE, Dept Phys Appl Sci Cluster, Energy Acres,Bidholi,Via Prem Nagar, Dehra Dun 248007, Uttaranchal, India
关键词
Black holes in higher dimensions; Null geodesics; Black hole shadow; M87 EVENT HORIZON; TELESCOPE RESULTS. I; EXTRA DIMENSIONS; HYDROGEN-ATOM; PARTICLES; FIELD;
D O I
10.1016/j.aop.2024.169803
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this article, we study the black hole evaporation process and shadow property of the Tangherlini-Reissner-Nordstrom (TRN) black holes. The TRN black holes are the higher- dimensional extension of the Reissner-Nordstrom (RN) black holes and are characterized by their mass M, charge q, and spacetime dimensions D . In higher-dimensional spacetime, the black hole evaporation occurs rapidly, causing the black hole's horizon to shrink. We derive the rate of mass loss for the higher-dimensional charged black hole and investigate the effect of higher-dimensional spacetime on charged black hole shadow. We derive the complete geodesic equations of motion with the effect of spacetime dimensions D . We determine impact parameters by maximizing the black hole's effective potential and estimate the critical radius of photon orbits. The photon orbits around the black hole shrink with the effect of the increasing number of spacetime dimensions. To visualize the shadows of the black hole, we derive the celestial coordinates in terms of the black hole parameters. We use the observed results of M87 and Sgr A* black hole from the Event Horizon Telescope and estimate the angular diameter of the charge black hole shadow in the higher-dimensional spacetime. We also estimate the energy emission rate of the black hole. Our finding shows that the angular diameter of the black hole shadow decreases with the increasing number of spacetime dimensions D.
引用
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页数:12
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