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Quasinormal modes and emission rate of ModMax (A)dS black holes

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arxiv 2411.02907 v1 pith:3UNN5HAB submitted 2024-11-05 gr-qc

Behzad Eslam Panah , Angel Rincon , Narges Heidari This is my paper · ORCID
classification gr-qc
keywords blackmodmaxquasinormalemissionholesmodescosmologicalgeodesics
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By considering a new model of nonlinear electrodynamics, known as the modified Maxwell (ModMax), and taking into account the topological and the cosmological constants in Einstein's gravity, we extract black hole solutions called Topological ModMax (A)dS black holes. The next step is to study the thermodynamic properties, quasinormal modes, and emission rates of these black holes in order to examine the impact of ModMax's parameter and the cosmological constant on these systems. To achieve this, we obtain the quasinormal spectra for massless scalar, electromagnetic, and Dirac perturbations. Additionally, we calculate null geodesics and determine the radius of the critical orbit. We then apply this information to derive the angular velocity and the Lyapunov exponent, which represent the real and imaginary terms of the quasinormal modes in the eikonal limit, respectively. Furthermore, we investigate the energy emission rate based on the discussion of null geodesics and the shadow radius.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Charged black holes in Kalb-Ramond gravity: Weak Deflection Angle, Shadow cast, Quasinormal Modes and Neutrino annihilation

    gr-qc 2025-05 reject novelty 4.0 of 10

    The Kalb-Ramond black hole phenomenology is mostly an extension of known results, and its shadow formula is internally inconsistent, invalidating the EHT-based constraints.

  2. Accelerating electrically charged ModMax black hole solutions in $F(R)$ gravity

    gr-qc 2026-07 conditional novelty 2.0 of 10

    The electric-sector F(R)-ModMax accelerating black hole is the known F(R)-Maxwell C-metric solution with charge q e^{-γ/2}.

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