Cosmology with a Variable Chaplygin Gas

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dc.creatorGuo, Zong-Kuan
dc.creatorZhang, Yuan-Zhong
dc.date2005-06-04
dc.date2007-01-09
dc.date.accessioned2026-07-07T11:24:25Z
dc.date.available2026-07-07T11:24:25Z
dc.descriptionWe consider a new generalized Chaplygin gas model that includes the original Chaplygin gas model as a special case. In such a model the generalized Chaplygin gas evolves as from dust to quiessence or phantom. We show that the background evolution for the model is equivalent to that for a coupled dark energy model with dark matter. The constraints from the current type Ia supernova data favour a phantom-like Chaplygin gas model.
dc.description8 pages, 3 figures, LaTeX2e, Accepted for publication in Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/astro-ph/0506091
dc.identifierhttp://arxiv.org/abs/astro-ph/0506091
dc.identifierPhys.Lett.B645:326-329,2007
dc.identifierdoi:10.1016/j.physletb.2006.12.063
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195187
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCosmology with a Variable Chaplygin Gas
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