paper

Violation of Hod's Conjecture and Probing it with Optical properties of a 5-D black hole in Einstein Gauss-Bonnet Bumblebee theory of gravity

arXiv:2405.02455 · doi:10.1016/j.dark.2024.101535

Abstract

In this work, the quasinormal modes of a -D black hole in Einstein Gauss-Bonnet Bumblebee theory of gravity have been investigated with the help of the Padé averaged higher order WKB approximation method and the validity of Hod's conjecture has been studied. It is found that the presence of Lorentz symmetry breaking due to the Bumblebee field favours Hod's conjecture. But in the case of the Gauss-Bonnet term, an increase in the coupling parameter increases the chances of violation of Hod's conjecture. We further investigated the optical properties of the black hole {\it viz.}, shadow and emission rate. It is found that a black hole with a lower lifetime favours Hod's conjecture.

16 pages, 8 figures (published version). arXiv admin note: text overlap with arXiv:2102.13335, arXiv:2302.01580, arXiv:2005.09761 by other authors

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