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arXiv · 1004.5585

Constraints on the Generalized Chaplygin Gas Model from Gamma-Ray Bursts

R. C. Freitas·S. V. B. Gonçalves·H. E. S. Velten
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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 $\alpha$ is favoured if we adopt a flat Universe and the estimated value of the parameter $H_{0}$ is lower than that found in literature.

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R. C. Freitas, S. V. B. Gonçalves, H. E. S. Velten. 2010-04-30. Constraints on the Generalized Chaplygin Gas Model from Gamma-Ray Bursts. https://doi.org/10.1016/j.physletb.2011.07.070

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