Relaxation dynamics of charged gravitational collapse

Details Relaxation dynamics of charged gravitational collapse Relaxation dynamics of charged gravitational collapse

2010-06-23

arxiv.org/abs/1006.4439v1

Phys.Lett.A374:2901,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages

Scientific paper

10.1016/j.physleta.2010.05.052

We study analytically the relaxation dynamics of charged test fields left outside a newly born charged black hole. In particular, we obtain a simple analytic expression for the fundamental quasinormal resonances of near-extremal Reissner-Nordstr\"om black holes. The formula is expressed in terms of the black-hole physical parameters: $\omega=q\Phi-i2\pi T_{BH}(n+{1 \over 2})$, where $T_{BH}$ and $\Phi$ are the temperature and electric potential of the black hole, and $q$ is the charge of the field.

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