Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-12-03
J.Phys.Conf.Ser. 33 (2006) 197-202
Astronomy and Astrophysics
Astrophysics
6 pages, Latex file + 9 eps figures + (jpconf.cls,jpconf11.clo), to appear in the Proceedings of the Fourth Meeting on Constra
Scientific paper
We use the Type Ia Supernova gold sample to constrain the parameters of dark energy models namely the Cardassian, Dvali-Turner (DT) and generalized Chaplygin gas (GCG) models. In our best fit analysis for these dark energy proposals we consider flat and the non-flat priors. For all models, we find that relaxing the flatness condition implies that data favors a positive curvature; moreover, the GCG model is nearly flat, as required by Cosmic Microwave Background (CMB) observations.
Bento Maria Conceição
Bertolami Orfeu
Santos M. . N. C.
Sen Abhijit
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