Regular charged black holes, energy conditions and quasinormal modes

Abstract

We discuss energy conditions and quasinormal modes for scalar perturbations of regular charged black holes within the framework of General Relativity coupled to non-linear electrodynamics. The frequencies are computed numerically adopting the WKB method, while in the eikonal limit an analytic expression for the spectra is obtained. The impact of the electric charge, the angular degree, and the overtone number on the spectra is investigated in detail. We find that all frequencies are characterized by a negative imaginary part, and that each type of energy conditions imply a different quasinormal spectrum.

29 pages, 11 figures, 5 tables, to be published in Fortschritte der Physik

References in corpus (14)

• Regular black holes with a nonlinear electrodynamics source
• Higher order WKB formula for quasinormal modes and grey-body factors: recipes for quick and accurate calculations
• Notes on non-singular models of black holes
• Nonlinear electrodynamics effects on the black hole shadow, deflection angle, quasinormal modes and greybody factors
• Shadow, lensing, quasinormal modes, greybody bounds and neutrino propagation by dyonic ModMax black holes
• Weak gravitational lensing of regular black holes with cosmic strings using the Gauss-Bonnet theorem
• Greybody Factors for Scalar Fields emitted by a Higher-Dimensional Schwarzschild-de-Sitter Black-Hole
• Quasinormal modes of massive scalar fields in four-dimensional wormholes: anomalous decay rate
• Quasinormal modes of nonlinear electromagnetic black holes from unstable null geodesics
• Quasinormal spectra of scale-dependent Schwarzschild-de Sitter black holes
• Superradiant instability and charged scalar quasinormal modes for $2+1$-dimensional Coulomb-like AdS black holes from nonlinear electrodynamics
• Quasinormal modes of an improved Schwarzschild black hole
• Quasi Normal Modes of hairy black holes at higher--order WKB approach
• Weak Deflection Angle and Greybody Bound of Magnetized Regular Black Hole

Cited by in corpus (13)

• Perturbations and Quasinormal Modes of the Dirac Field in Effective Quantum Gravity
• From regular black holes to horizonless objects: quasi-normal modes, instabilities and spectroscopy
• On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows
• Radiation properties of the accretion disk around a black hole in Einstein-Maxwell-scalar theory
• Formation of regular black hole from baryonic matter
• Influences of modified Chaplygin dark fluid around a black hole
• Probing the black holes in a dark matter halo of M87 using gravitational wave echoes
• Charged black holes in Kalb-Ramond gravity: Weak Deflection Angle, Shadow cast, Quasinormal Modes and Neutrino annihilation
• Grey-body factors of higher dimensional regular black holes in quasi-topological theories
• Regular black holes from pure gravity in four dimensions
• Radial Oscillations of the HESS J1731-347 Compact Object via the Karmarkar Condition in Gravity
• Stellar modeling via the Tolman IV solution: The cases of the massive pulsar J0740+6620 and the HESS J1731-347 compact object
• Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties