Absorption cross section of RN and SdS extremal black hole

Details Absorption cross section of RN and SdS extremal black hole Absorption cross section of RN and SdS extremal black hole

2008-02-29

arxiv.org/abs/0802.4374v1

Int.J.Mod.Phys.A23:4011-4021,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, Preprint to IJMPA

Scientific paper

10.1142/S0217751X0804158X

The nature of scalar wave functions near the horizon of Reissner Nordstrom
(RN) extremal and Schwarzschild-de Sitter (SdS) extremal black holes are found
using WKB approximation and the effect of reflection of waves from the horizon.
The absorption cross section $\sigma_{abs}$ when RN extremal and SdS extremal
black holes placed in a Klein-Gordon field is calculated.

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