The universe dominated by the extended Chaplygin gas

E. O. Kahya; B. Pourhassan

doi:10.1142/S0217732315500704

The universe dominated by the extended Chaplygin gas

E. O. Kahya, B. Pourhassan^*

^*Corresponding author for this work

Department of Physics Engineering

Damghan University

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

In this paper, we consider a universe dominated by the extended Chaplygin gas which was recently proposed as the last version of Chaplygin gas models. Here, we only consider the second-order term which recovers quadratic barotropic fluid equation of state. The density perturbations are analyzed in both relativistic and Newtonian regimes and show that the model is stable without any phase transition and critical point. We confirmed stability of the model using thermodynamics point of view.

Original language	English
Article number	1550070
Journal	Modern Physics Letters A
Volume	30
Issue number	13
DOIs	https://doi.org/10.1142/S0217732315500704
Publication status	Published - 30 Apr 2015

Bibliographical note

Publisher Copyright:
© 2015 World Scientific Publishing Company.

Keywords

Cosmology
dark energy

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10.1142/S0217732315500704

Cite this

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The universe dominated by the extended Chaplygin gas

Abstract

Bibliographical note

Keywords

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