Absorption of a massive scalar field by a charged black hole
arXiv:1404.0687 · doi:10.1103/PhysRevD.89.104053
Abstract
We calculate the absorption cross section of a massive neutral scalar field impinging upon a Reissner-Nordström black hole. First, we derive key approximations in the high- and low-frequency regimes. Next, we develop a numerical method to compute the cross section at intermediate frequencies, and present a selection of results. Finally, we draw together our complementary approaches to give a quantitative full-spectrum description of absorption.
arXiv comment12 pages, 12 figures. To match published version
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