Geodesics and periodic orbits around quantum-corrected black holes

被引：65

作者：

Deng, Xue-Mei ^{[1
]}

机构：

[1] Chinese Acad Sci, Purple Mt Observ, Nanjing 210033, Peoples R China

来源：

PHYSICS OF THE DARK UNIVERSE | 2020年 / 30卷

基金：

中国国家自然科学基金;

关键词：

Gravitation; General relativity; Alternative theories of gravity; Astrometry; ROTATING WHITE-DWARF; QUASI-NORMAL MODES; GENERAL-RELATIVITY; STELLAR ORBITS; STAR S2; SYSTEM;

D O I：

10.1016/j.dark.2020.100629

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The orbital dynamics in a black hole spacetime can give us a chance to get deep insight into quantum gravity and fundamental physics. In this paper, we mainly focus on a massive particle's motion around a quantum-corrected Schwarzschild black hole. In order to reveal some signatures of the adiabatic inspiral stage for probing the gravitational wave, the geodesics and periodic orbits around the black hole are investigated. It is found that bound orbits around the quantum-corrected Schwarzschild black hole have larger angular momentum and radius compared to the classic (Schwarzschild) black hole. Furthermore, by taking a taxonomy into account, periodic orbits for the massive particle are studied by a rational number with a triplet of integers. It suggests that the rational number increases with the increased of the energy of the massive particle. Besides, in the adiabatic inspiral stage, the particle's periodic orbits around the quantum-corrected Schwarzschild black hole have higher energy in comparison to the ones in the classic black hole. These results demonstrated that the dynamical approach for the taxonomy enables us to distinguish the quantum-corrected Schwarzschild black hole from the classic black hole only by a massive particle's periodic orbits. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：9

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