Effect of higher dimensions on rotating black holes shadow

被引：5

作者：

Singh, Balendra Pratap ^{[1
]}

Kumar, Rahul ^{[2
]}

Ghosh, Sushant G. ^{[2
,3
]}

机构：

[1] Tulas Inst, Dept Appl Sci & Engn, Dehra Dun 248197, Uttaranchal, India

[2] Univ KwaZulu Natal, Astrophys Res Ctr, Sch Math Stat & Comp Sci, Private Bag 54001, ZA-4000 Durban, South Africa

[3] Jamia Millia Islamia, Ctr Theoret Phys, New Delhi 110025, India

来源：

NEW ASTRONOMY | 2023年 / 99卷

关键词：

Black hole shadow; Higher dimensional spacetime; Shadow Observables; Energy emission rate; TELESCOPE RESULTS. VI; FIELD; I;

D O I：

10.1016/j.newast.2022.101945

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The gravitation lensing features are different for gravities with the extra dimensions, hence, there is an opportunity to find the sign of extra dimension in the supermassive black hole. In new of then, we investigate the shadow cast by the higher-dimensional rotating black hole and demonstrate the higher-dimensional effect on rotating black hole shadow. The shape and size of the higher-dimensional black hole shadow is mainly characterized by its mass parameter (M), spin parameter (a) and spacetime dimensions (D). For the increasing values of the spin parameter a and spacetime dimensions D, the effective size of the black hole shadow decreases, and the shape gets more deformed. Our study includes the shadow observables in higher dimensions with the data of M87 black hole. We also calculate the energy emission rate for the higher-dimensional rotating black hole which increases with the spacetime dimensions D.

引用

页数：9

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