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

被引：19

作者：

Amirhashchi, Hassan ^{[1
]}

Pradhan, Anirudh ^{[2
]}

Zainuddin, Hishamuddin ^{[3
]}

机构：

[1] Islamic Azad Univ, Mahshahr Branch, Mahshahr, Iran

[2] Hindu Postgrad Coll, Dept Math, Zamania 232331, Ghazipur, India

[3] Univ Putra Malaysia, Inst Math Res, Lab Computat Sci & Math Phys, Serdang 43400, Selangor De, Malaysia

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2013年 / 13卷 / 02期

关键词：

cosmology: theory; dark energy; viscous fluid; HUBBLE-SPACE-TELESCOPE; EQUATION-OF-STATE; PROBE WMAP OBSERVATIONS; COSMOLOGICAL PARAMETERS; ACCELERATING UNIVERSE; ANGULAR SCALES; FRW COSMOLOGY; IA SUPERNOVAE; ANISOTROPY; DECELERATION;

D O I：

10.1088/1674-4527/13/2/001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 omega(D) changes from omega(eff)(D) > -1 to omega(eff)(D) < -1, which is consistent with recent observations.

引用

页码：129 / 138

页数：10

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