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Interacting two-fluid viscous dark energy models in a non-flat universe

Amirhashchi, Hassan and Pradhan, Anirudh and Zainuddin, Hishamuddin (2013) Interacting two-fluid viscous dark energy models in a non-flat universe. Research in Astronomy and Astrophysic, 13 (2). pp. 129-138. ISSN 1674-4527

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Abstract

We study the evolution of the dark energy parameter within the scope of a spatially non-flat and isotropic Friedmann-Robertson-Walker model filled with barotropic fluid and bulk viscous stresses. We have obtained cosmological solutions that do not have a Big Rip singularity, and concluded that in both non-interacting and interacting cases the non-flat open Universe crosses the phantom region. We find that during the evolution of the Universe, the equation of state for dark energy ωD changes from ω eff D > -1 to ωeff D < -1, which is consistent with recent observations.

Item Type:Article
Keyword:Cosmology; Dark energy; Theory; Viscous fluid.
Faculty or Institute:Institute for Mathematical Research
Publisher:Institute of Physics Publishing
DOI Number:10.1088/1674-4527/13/2/001
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1088/1674-4527/13/2/001
ID Code:30082
Deposited By: Umikalthom Abdullah
Deposited On:25 Jun 2014 12:07
Last Modified:08 Sep 2015 09:24

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