Comments on absorption cross section for Chern-Simons black holes in five dimensions

Abstract

In this paper we study the effects of black hole mass on the absorption cross section for a massive scalar field propagating in a 5-dimensional topological Chern-Simons black hole at the low-frequency limit. We consider the two branches of black hole solutions $(\alpha =\pm 1)$ and we show that, if the mass of black hole increase the absorption cross section decreases at the zero-frequency limit for the branch $\alpha =-1$ and for the other branch, $\alpha =1$, the behavior is opposite, if the black hole mass increase the absorption cross section increases. Also we find that beyond a certain frequency value, the mass black hole does not affect the absorption cross section.

9 pages, 5 figures

References in corpus (3)

• Exact solutions for the Einstein-Gauss-Bonnet theory in five dimensions: Black holes, wormholes and spacetime horns
• Higher order gravity theories and their black hole solutions
• New Energy Definition for Higher Curvature Gravities

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