Generalized Chaplygin gas model, supernovae and cosmic topology

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dc.creatorBento, M. C.
dc.creatorBertolami, O.
dc.creatorRebouças, M. J.
dc.creatorSilva, P. T.
dc.date2005-12-28
dc.date2006-04-18
dc.date.accessioned2026-07-07T10:44:04Z
dc.date.available2026-07-07T10:44:04Z
dc.descriptionIn this work we study to which extent the knowledge of spatial topology may place constraints on the parameters of the generalized Chaplygin gas (GCG) model for unification of dark energy and dark matter. By using both the Poincaré dodecahedral and binary octahedral spaces as the observable spatial topologies, we examine the current type Ia supernovae (SNe Ia) constraints on the GCG model parameters. We show that the knowledge of spatial topology does provide additional constraints on the $A_s$ parameter of the GCG model but does not lift the degeneracy of the $α$ parameter.
dc.descriptionRevtex 4, 8 pages, 10 figures, 1 table; version to match the published one
dc.identifierhttps://arxiv.org/abs/gr-qc/0512158
dc.identifierhttp://arxiv.org/abs/gr-qc/0512158
dc.identifierPhys.Rev.D73:043504,2006
dc.identifierdoi:10.1103/PhysRevD.73.043504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182466
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleGeneralized Chaplygin gas model, supernovae and cosmic topology
dc.typetext

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