Absorption of a massive scalar field by a charged black hole
Carolina L. BenoneFaculdade de Física, Universidade Federal do Pará, 66075-110 Belém, Pará, BrazilEdnilton S. de OliveiraFaculdade de Física, Universidade Federal do Pará, 66075-110 Belém, Pará, BrazilSam R. DolanConsortium for Fundamental Physics, School of Mathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, United KingdomLuís C. B. CrispinoFaculdade de Física, Universidade Federal do Pará, 66075-110 Belém, Pará, Brazil
2014en
ABI
Аннотация
We calculate the absorption cross section of a massive neutral scalar field impinging upon a Reissner-Nordstr\"om 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.
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