Decay of massive scalar field in a black hole background immersed in magnetic field
| Autor: | Renli Xu, Chen Wu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Spacetime Physics and Astronomy (miscellaneous) FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) General Relativity and Quantum Cosmology Magnetic field Azimuth Black hole Exact solutions in general relativity Effective mass (solid-state physics) Quantum electrodynamics Scalar field Engineering (miscellaneous) |
| Zdroj: | European Physical Journal C |
| Popis: | We evaluate quasinormal modes of massive scalar field of the Ernst spacetime, an exact solution of the Einstein-Maxwell equations describing a black hole immersed in uniform magnetic field $B$. It is known that the quasinormal spectrum for massive scalar field in the vicinity of the magnetized black holes acquires an effective mass $\mu_{eff}= \sqrt{4B^2 m^2+\mu^2}$, where $m$ is the azimuthal number and $\mu$ is the mass of scalar field. The numerical result shows that increasing of the field effective mass and the magnetic field $B$ gives rise to decreasing of the imaginary part of the quasinormal modes until reaching the vanishing damping rate. Comment: 11 pages, 2 Figs, 2 Tables |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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