Superradiance and instabilities in black holes surrounded by anisotropic fluids (2021)
- Authors:
- Autor USP: MELGAR, BERTHA MARÍA CUADROS - RUSP
- Unidade: RUSP
- DOI: 10.1103/physrevd.104.104039
- Assunto: BURACOS NEGROS
- Agências de fomento:
- Language: Inglês
- Abstract: In this paper we analyze the propagation of a charged scalar field in a Reissner-Nordström black hole endowed with one anisotropic fluid that can play the role of a cosmological term for a certain set of parameters. The evolution of a scalar wave scattering is examined, giving rise to the same superradiant scattering condition as in the de Sitter case. In addition, an analysis of the modes coming from the application of quasinormal boundary conditions is presented. Some special cases displaying analytical solutions for the quasinormal frequencies are discussed. Moreover, the superradiant condition is adapted to the quasinormal problem triggering unstable modes, what is confirmed by our numerical analysis.
- Imprenta:
- Publisher: APS
- Publisher place: Washington-DC
- Date published: 2021
- Source:
- Título: Physical Review D
- ISSN: 2470-0029
- Volume/Número/Paginação/Ano: v.104, n. , p.1-13, art. n. 104039, 2021
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: green
-
ABNT
CUADROS-MELGAR, Bertha e FONTANA, Rodrigo Dal Bosco e OLIVEIRA, Jeferson de. Superradiance and instabilities in black holes surrounded by anisotropic fluids. Physical Review D, v. 104, n. art. 104039, p. 1-13, 2021Tradução . . Disponível em: https://doi.org/10.1103/physrevd.104.104039. Acesso em: 25 dez. 2025. -
APA
Cuadros-Melgar, B., Fontana, R. D. B., & Oliveira, J. de. (2021). Superradiance and instabilities in black holes surrounded by anisotropic fluids. Physical Review D, 104( art. 104039), 1-13. doi:10.1103/physrevd.104.104039 -
NLM
Cuadros-Melgar B, Fontana RDB, Oliveira J de. Superradiance and instabilities in black holes surrounded by anisotropic fluids [Internet]. Physical Review D. 2021 ;104( art. 104039): 1-13.[citado 2025 dez. 25 ] Available from: https://doi.org/10.1103/physrevd.104.104039 -
Vancouver
Cuadros-Melgar B, Fontana RDB, Oliveira J de. Superradiance and instabilities in black holes surrounded by anisotropic fluids [Internet]. Physical Review D. 2021 ;104( art. 104039): 1-13.[citado 2025 dez. 25 ] Available from: https://doi.org/10.1103/physrevd.104.104039 - Atalhos gravitacionais em cosmologia de branas
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Informações sobre o DOI: 10.1103/physrevd.104.104039 (Fonte: oaDOI API)
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