Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/40060
Título: | Absorption of scalars by nonextremal charged black holes in string theory |
Autor(es): | Moura, Filipe Alexandre Pedra Aguiar |
Palavras-chave: | Black holes in higher dimensions Superstring effective actions Gravitational aspects of string theory |
Data: | Nov-2015 |
Editora: | Springer Verlag |
Revista: | General Relativity and Gravitation |
Resumo(s): | We analyze the low frequency absorption cross section of minimally coupled massless scalar fields by different kinds of charged static black holes in string theory, namely the D1–D5 system in d=5 and a four dimensional dyonic four-charged black hole. In each case we show that this cross section always has the form of some parameter of the solution divided by the black hole Hawking temperature. We also verify in each case that, despite its explicit temperature dependence, such quotient is finite in the extremal limit, giving a well defined cross section. We show that this precise explicit temperature dependence also arises in the same cross section for black holes with string \alpha' corrections: it is actually induced by them. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/40060 |
DOI: | 10.1007/s10714-015-1988-z |
ISSN: | 0001-7701 |
Versão da editora: | http://link.springer.com/article/10.1007/s10714-015-1988-z |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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FMoura_2015_B.pdf | 186,06 kB | Adobe PDF | Ver/Abrir |