Light Deflection by Rotating Regular Black Holes with a Cosmological Constant
Abstract
Using the Gauss-Bonnet theorem, we compute and examine the deflection angle of light rays by rotating regular black holes with a cosmological constant. By the help of optical geometries, we first deal with the Hayward black holes with cosmological contributions. Then, we reconsider the study of the Bardeen solutions. We inspect the cosmological constant effect on the deflection angle of light rays. Concretely, we find extra cosmological correction terms generalizing certain obtained findings. Using graphical analysis, we provide a comparative discussion with respect to the Kerr solutions. The results confirm that the non-linear electrodynamic charges affect the space-time geometry by decreasing the deflection angle of light rays by such cosmological black holes.
Keywords
Cite
@article{arxiv.2204.10150,
title = {Light Deflection by Rotating Regular Black Holes with a Cosmological Constant},
author = {A. Belhaj and H. Belmahi and M. Benali and H. El Moumni},
journal= {arXiv preprint arXiv:2204.10150},
year = {2022}
}
Comments
latex, 16 pages, 4 figures. Accepted for publication in Chin. J. Phys 2022