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arXiv · hep-th/9706071

Greybody factors for rotating black holes in four dimensions

Mirjam Cvetic·Finn Larsen
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Abstract

We present the wave equation for a minimally coupled scalar field in the background of a rotating four-dimensional black hole that is parametrized by its mass, angular momentum, and four independent U(1) charges. The near horizon structure is identical to the five-dimensional case, and suggestive of an underlying description in string theory that is valid in the general non-extremal case. We calculate the greybody factors for the Hawking radiation. For sufficiently large partial wave number the emission spectrum can be calculated for general non-extremal black holes and any particle energy. We interpret this spectrum in terms of a multi-body process in an effective string theory.

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Mirjam Cvetic, Finn Larsen. 1997-08-14. Greybody factors for rotating black holes in four dimensions. https://doi.org/10.1016/s0550-3213(97)00541-5

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