Supernovae constraints on models of dark energy revisited

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dc.creatorBento, M. C.
dc.creatorBertolami, O.
dc.creatorSantos, N. M. C.
dc.creatorSen, A. A.
dc.date2004-12-27
dc.date2005-05-11
dc.date.accessioned2026-07-07T11:29:32Z
dc.date.available2026-07-07T11:29:32Z
dc.descriptionWe use the Type Ia Supernova gold sample data of Riess {\it et al} in order to constrain three models of dark energy. We study the Cardassian model, the Dvali-Turner gravity modified model and the generalized Chaplygin gas model of dark energy - dark matter unification. In our best fit analysis for these three dark energy proposals we consider flat model and the non-flat model priors. We also discuss the degeneracy of the models with the XCDM model through the computation of the so-called jerk parameter.
dc.descriptionRevtex4, 11 pages, 6 sets of figures, 3 tables. Version published at Physical Review D
dc.identifierhttps://arxiv.org/abs/astro-ph/0412638
dc.identifierhttp://arxiv.org/abs/astro-ph/0412638
dc.identifierPhys.Rev.D71:063501,2005
dc.identifierdoi:10.1103/PhysRevD.71.063501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196742
dc.subjectAstrophysics
dc.titleSupernovae constraints on models of dark energy revisited
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