Journal of High Energy Astrophysics, Volume 43, Pages 66-78 , 01/08/2024
Magnetically charged regular black holes in f(R,T) gravity coupled to nonlinear electrodynamics
Abstract
We construct asymptotically flat, static spherically symmetric black holes with regular centre in f(R,T) gravity coupled to nonlinear electrodynamics Lagrangian. We obtain generalized metric function of the Bardeen and Hayward black holes. The null, weak and strong energy conditions of these solutions are discussed. All the energy conditions hold outside the black hole's outer event horizon by appropriated choices of parameters. Quasinormal mode of massive scalar perturbation is also investigated. Quasinormal frequencies are computed via the sixth order Wentzel-Kramers-Brillouin (WKB) with Padé approximation. All the imaginary parts of the frequencies are found to be negative. Finally, we provide an analysis in the eikonal limit.
Document Type
Article
Source Type
Journal
ASJC Subject Area
Physics and Astronomy : Astronomy and Astrophysics
Funding Agency
Thailand Science Research and Innovation