Supernovae constraints on models of dark energy revisited
Astrophysics
2008-11-26 v2
Abstract
We 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.
Cite
@article{arxiv.astro-ph/0412638,
title = {Supernovae constraints on models of dark energy revisited},
author = {M. C. Bento and O. Bertolami and N. M. C. Santos and A. A. Sen},
journal= {arXiv preprint arXiv:astro-ph/0412638},
year = {2008}
}
Comments
Revtex4, 11 pages, 6 sets of figures, 3 tables. Version published at Physical Review D