Absorption cross section of RN black hole

Details Absorption cross section of RN black hole Absorption cross section of RN black hole

2007-08-23

arxiv.org/abs/0708.3146v1

Int.J.Mod.Phys.D18:1-11,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, 2 figures

Scientific paper

10.1142/S0218271809014236

The behavior of a charged scalar field in the RN black hole space time is studied using WKB approximation. In the present work it is assumed that matter waves can get reflected from the event horizon. Using this effect, the Hawking temperature and the absorption cross section for RN black hole placed in a charged scalar field are calculated. The absorption cross section $\sigma _{abs}$ is found to be inversely proportional to square of the Hawking temperature of the black hole.

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