Where are all the gravastars? Limits upon the gravastar model from accreting black holes

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dc.creatorBroderick, Avery E.
dc.creatorNarayan, Ramesh
dc.date2007-01-29
dc.date.accessioned2026-07-07T11:01:39Z
dc.date.available2026-07-07T11:01:39Z
dc.descriptionThe gravastar model, which postulates a strongly correlated thin shell of anisotropic matter surrounding a region of anti-de Sitter space, has been proposed as an alternative to black holes. We discuss constraints that present-day observations of well-known black hole candidates place on this model. We focus upon two black hole candidates known to have extraordinarily low luminosities: the supermassive black hole in the Galactic Center, Sagittarius A*, and the stellar-mass black hole, XTE J1118+480. We find that the length scale for modifications of the type discussed in Chapline et al. (2003) must be sub-Planckian.
dc.description11 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/gr-qc/0701154
dc.identifierhttp://arxiv.org/abs/gr-qc/0701154
dc.identifierClass.Quant.Grav.24:659-666,2007
dc.identifierdoi:10.1088/0264-9381/24/3/009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188011
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleWhere are all the gravastars? Limits upon the gravastar model from accreting black holes
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