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arXiv · 1712.00620

Greybody factors for Spherically Symmetric Einstein-Gauss-Bonnet-de Sitter black hole

Cheng-Yong Zhang·Peng-Cheng Li·Bin Chen
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Abstract

We study the greybody factors of the scalar fields in spherically symmetric Einstein-Gauss-Bonnet-de Sitter black holes in higher dimensions. We derive the greybody factors analytically for both minimally and non-minimally coupled scalar fields. Moreover, we discuss the dependence of the greybody factor on various parameters including the angular momentum number, the non-minimally coupling constant, the spacetime dimension, the cosmological constant and the Gauss-Bonnet coefficient in detail. We find that the non-minimal coupling may suppress the Hawking radiation, while the Gauss-Bonnet coupling could enhance the radiation.

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Cheng-Yong Zhang, Peng-Cheng Li, Bin Chen. 2017-12-02. Greybody factors for Spherically Symmetric Einstein-Gauss-Bonnet-de Sitter black hole. https://doi.org/10.1103/physrevd.97.044013

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