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DC Field | Value | Language |
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dc.contributor.author | Aniceto, Pedro | - |
dc.contributor.author | Pani, Paolo | - |
dc.contributor.author | Rocha, Jorge V. | - |
dc.date.accessioned | 2017-07-17T12:00:34Z | - |
dc.date.available | 2017-07-17T12:00:34Z | - |
dc.date.issued | 2016-05-19 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.uri | http://hdl.handle.net/2445/113900 | - |
dc.description.abstract | We construct exact, time-dependent, black hole solutions of Einstein-Maxwell-dilaton theory with arbitrary dilaton coupling, a. For a = 1 this theory arises as the four-dimensional low-energy effective description of heterotic string theory. These solutions represent electrically charged, spherically symmetric black holes emitting or absorbing charged null fluids and generalize the Vaidya and Bonnor-Vaidya solutions of general relativity and of Einstein-Maxwell theory, respectively. The a = 1 case stands out as special, in the sense that it is the only choice of the coupling that allows for a time-dependent dilaton field in this class of solutions. As a by-product, when a = 1 we show that an electrically charged black hole in this theory can be overcharged by bombarding it with a stream of electrically charged null fluid, resulting in the formation of a naked singularity. This provides an example of cosmic censorship violation in an exact dynamical solution to low-energy effective string theory and in a case in which the total stress-energy tensor satisfies all energy conditions. When a ≠ 1, our solutions necessarily have a time-independent scalar field and consequently cannot be overcharged. | - |
dc.format.extent | 19 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Verlag | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1007/JHEP05(2016)115 | - |
dc.relation.ispartof | Journal of High Energy Physics, 2016, vol. 2016, num. 115 | - |
dc.relation.uri | https://doi.org/10.1007/JHEP05(2016)115 | - |
dc.rights | cc-by (c) Aniceto, Pedro et al., 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Forats negres (Astronomia) | - |
dc.subject.classification | Espai i temps | - |
dc.subject.other | Black holes (Astronomy) | - |
dc.subject.other | Space and time | - |
dc.title | Radiating black holes in Einstein-Maxwell-dilaton theory and cosmic censorship violation | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 670186 | - |
dc.date.updated | 2017-07-17T12:00:34Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/656882/EU//REGMat | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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670186.pdf | 382.02 kB | Adobe PDF | View/Open |
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