Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10722648 | Physics Letters B | 2011 | 8 Pages |
Abstract
We study the generalized Chaplygin gas model (GCGM) using Gamma-ray bursts as cosmological probes. In order to avoid the so-called circularity problem we use cosmology-independent data set and Bayesian statistics to impose constraints on the model parameters. We observe that a negative value for the parameter α is favoured in a flat Universe and the estimated value of the parameter H0 is lower than that found in literature.
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
R.C. Freitas, S.V.B. Gonçalves, H.E.S. Velten,