Rational orbits around 4D Einstein–Lovelock black holes

The orbital dynamics in the strong gravitational field might present unique features of quantum gravity and high-dimensional theory. In this paper, a timelike particle’s periodic orbits around the 4-dimensional Einstein–Lovelock (4D−EL) black holes are investigated by employing a classification of t...

Full description

Saved in:
Bibliographic Details
Published inPHYSICS OF THE DARK UNIVERSE Vol. 31
Main Authors Lin, Hou-Yu, Deng, Xue-Mei
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.2021
Subjects
Alternative theories of gravity
Astrometry
General relativity
Gravitation
Gravitation
Alternative theories of gravity
General relativity
Astrometry
Online AccessGet full text

Cover

More Information
Summary:The orbital dynamics in the strong gravitational field might present unique features of quantum gravity and high-dimensional theory. In this paper, a timelike particle’s periodic orbits around the 4-dimensional Einstein–Lovelock (4D−EL) black holes are investigated by employing a classification of the zoom–whirl structure with a rational number q. It is found that these rational (periodic) orbits around 4D−EL black holes have a higher or lower energy than the ones around Schwarzschild black holes during the inspiral stage of detecting the gravitational waves. It depends strongly on the sign of a coupling constant in the theory. These results might provide hints for distinguishing 4D−EL black holes from Schwarzschild ones by using the orbital dynamical approach in the strong gravitational field.
ISSN:2212-6864
DOI:10.1016/j.dark.2020.100745