Quasinormal modes of black holes immersed in a strong magnetic field

Abstract

We found quasinormal modes, both in time and frequency domains, of the Ernst black holes, that is neutral black holes immersed in an external magnetic field. The Ernst solution reduces to the Schwarzschild solution, when the magnetic field vanishes. It is found that the quasinormal spectrum for massless scalar field in the vicinity of the magnetized black holes acquires an effective "mass" $\mu =2Bm$, where m is the azimuthal number and B is parameter describing the magnetic field. We shall show that in the presence of a magnetic field quasinormal modes are longer lived and have larger oscillation frequencies. The perturbations of higher dimensional magnetized black holes by Ortaggio and of magnetized dilaton black holes by Radu are considered.

5 pages, RevTex

References in corpus (8)

• Stability and quasinormal modes of the massive scalar field around Kerr black holes
• Higher-Derivative Corrected Black Holes: Perturbative Stability and Absorption Cross-Section in Heterotic String Theory
• Massive scalar field quasi-normal modes of higher dimensional black holes
• Perturbations and quasi-normal modes of black holes in Einstein-Aether theory
• Gravitational spectrum of black holes in the Einstein-Aether theory
• Late time tails of the massive vector field in a black hole background
• Particle motion around magnetized black holes: Preston-Poisson space-time
• Magnetized black hole as a gravitational lens

Cited by in corpus (15)

• Can environmental effects spoil precision gravitational-wave astrophysics?
• New parametrization for spherically symmetric black holes in metric theories of gravity
• (In)stability of D-dimensional black holes in Gauss-Bonnet theory
• Superradiant instability for black holes immersed in a magnetic field
• Superradiant instability of black holes immersed in a magnetic field
• Entropic force, holography and thermodynamics for static space-times
• Evolution of Brane-Localised Standard Model Fields in Gauss-Bonnet theory
• Quasinormal modes of magnetized black hole
• Scalar field quasinormal modes of noncommutative high dimensional Schwarzschild-Tangherlini black hole spacetime with smeared matter sources
• Redshift of light emitted by particles orbiting a black hole immersed in a strong magnetic field
• Neutron stars including the effects of chaotic magnetic fields and the anomalous magnetic moments
• Qusinormal oscillations and late-time tail of massless scalar perturbations of a magnetized black hole in Rastall gravity
• Tunneling and thermodynamics evolution of the magnetized Ernst-like black hole
• Tachyonic Instability of Reissner-Nordström-Melvin Black Holes in Einstein-Maxwell-Scalar Theory
• Fundamental fields around compact objects: Massive spin-2 fields, Superradiant instabilities and Stars with dark matter cores