Gravitational lensing in 4-D Einstein-Gauss-Bonnet gravity in the presence of plasma
General Relativity and Quantum Cosmology
2021-08-03 v2
Abstract
In this paper we have assumed a weak-field regime to explore the gravitational lensed photons in a 4 dimensional Einstein-Gauss-Bonnet gravity, which is very much in the limelight these days. The investigation is conducted in three distinct paradigms: uniform plasma, singular isothermal sphere and a non-singular isothermal sphere. The lensing angle associated with the distribution factor of the medium is individually derived for each case and further utilized to study the magnification of the image source brightness, selectively for the uniform plasma and singular isothermal sphere. The attained results are brought forth in contrast with the standard Schwarzschild geometry
Keywords
Cite
@article{arxiv.2103.00316,
title = {Gravitational lensing in 4-D Einstein-Gauss-Bonnet gravity in the presence of plasma},
author = {Gulmina Zaman Babar and Farruh Atamurotov and Abdullah Zaman Babar},
journal= {arXiv preprint arXiv:2103.00316},
year = {2021}
}
Comments
10 pages, 13 figures