Remarks on a nonlinear electromagnetic extension in AdS Reissner-Nordström spacetime

We explore the gravitational properties of a nonlinear electromagnetic extension of an AdS Reissner-Nordström black hole. Our study begins with an analysis of the metric function and horizon structure, followed by calculations of the Ricci and Kretschmann scalars and an evaluation of the non-vanishi...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2025-01, Vol.2025 (1), p.72
Main Author: Araújo Filho, A.A.
Format: Article
Language:English
Subjects:
Black holes
black holes and black hole thermodynamics in GR and beyond
Emission analysis
Evaporation
Exact solutions
Geodesy
Gibbs free energy
gravitational waves / theory
Hawking radiation
Perturbation
Scalars
Time domain analysis
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We explore the gravitational properties of a nonlinear electromagnetic extension of an AdS Reissner-Nordström black hole. Our study begins with an analysis of the metric function and horizon structure, followed by calculations of the Ricci and Kretschmann scalars and an evaluation of the non-vanishing Christoffel symbols. These calculations allow us to examine geodesics and their influence on the photon sphere and shadow formation. In the thermodynamic framework, we evaluate essential quantities, including the Hawking temperature, entropy, heat capacity, Gibbs free energy, and Hawking radiation emission. We further investigate black hole evaporation by estimating the evaporation timescale as the black hole approaches its final state. Additionally, quasinormal modes for scalar and vector perturbations are computed using the WKB approximation to characterize oscillatory behavior of the system. Finally, a time-domain analysis is provided in order to examine the evolution of these perturbations.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2025/01/072