Greybody factor of scalar field from Reissner-Nordstrom-de Sitter black hole

Abstract

In this work we derive a general expression for the greybody factor of non-minimally coupled scalar fields in Reissner-Nordström-de Sitter spacetime in low frequency approximation. In particular case of zero momentum, greybody factor tends to zero in low frequency limit as frequency squared goes to zero for non-vanishing coupling. We also elaborate the significance of the results by giving formulae of differential energy rate and general absorption cross section. The greybody factor gives insight into the spectrum of Hawking radiations.

References in corpus (4)

• Fermion scattering by a Schwarzschild black hole
• Greybody Factors for Scalar Fields emitted by a Higher-Dimensional Schwarzschild-de-Sitter Black-Hole
• Electromagnetic wave scattering by Schwarzschild black holes
• Greybody factor of scalar fields from black strings

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