文章基本信息

标题：FRW Cosmology with the Extended Chaplygin Gas
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作者：B. Pourhassan ; E. O. Kahya
期刊名称：Advances in High Energy Physics
印刷版ISSN：1687-7357
电子版ISSN：1687-7365
出版年度：2014
卷号：2014
DOI：10.1155/2014/231452
出版社：Hindawi Publishing Corporation
摘要：We propose extended Chaplygin gas equation of state for which it recovers barotropic fluid with quadratic equation of state. We use numerical method to investigate the behavior of some cosmological parameters such as scale factor, Hubble expansion parameter, energy density, and deceleration parameter. We also discuss the resulting effective equation of state parameter. Using density perturbations we investigate the stability of the theory.