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http://hdl.handle.net/10773/16903
Título: | Explosion and final state of an unstable Reissner-Nordstrom black hole |
Autor: | Sanchis-Gual, Nicolas Degollado, Juan Carlos Montero, Pedro J. Font, José A. Herdeiro, Carlos |
Data: | Abr-2016 |
Editora: | American Physical Society |
Resumo: | A Reissner-Nordstrm black hole (BH) is superradiantly unstable against spherical perturbations of a charged scalar field enclosed in a cavity, with a frequency lower than a critical value. We use numerical relativity techniques to follow the development of this unstable system-dubbed a charged BH bomb-into the nonlinear regime, solving the full Einstein-Maxwell-Klein-Gordon equations, in spherical symmetry. We show that (i) the process stops before all the charge is extracted from the BH, and (ii) the system settles down into a hairy BH: a charged horizon in equilibrium with a scalar field condensate, whose phase is oscillating at the (final) critical frequency. For a low scalar field charge q, the final state is approached smoothly and monotonically. For large q, however, the energy extraction overshoots, and an explosive phenomenon, akin to a bosenova, pushes some energy back into the BH. The charge extraction, by contrast, does not reverse. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/16903 |
DOI: | 10.1103/PhysRevLett.116.141101 |
ISSN: | 0031-9007 |
Aparece nas coleções: | CIDMA - Artigos DFis - Artigos GGDG - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PRL116(2016)141101.pdf | 1.09 MB | Adobe PDF | Ver/Abrir |
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