An Interacting Scenario for Dark Energy in Bianchi Type-I Universe
Abstract
We study the interaction between dark energy (DE) and dark matter (DM) in the scope of anisotropic bianchi type I space-time. First we derive the general form of the dark energy equation of state parameter (EoS) in both non-interacting and interacting cases and then we examine it's future by applying a hyperbolic scale factor. It is shown that in non-interacting case, depending on the value of the anisotropy parameter , the dark energy EoS parameter is varying from phantom to quintessence whereas in interacting case EoS parameter vary in quintessence region. However, in both cases the dark energy EoS parameter , ultimately (i. e at ) tends to the cosmological constant (). Moreover, we fixed the cosmological bound on the anisotropy parameter by using the recent observational data of Hubble parameter.
Keywords
Cite
@article{arxiv.1405.5714,
title = {An Interacting Scenario for Dark Energy in Bianchi Type-I Universe},
author = {Hassan Amirhashchi and S. N. A. Qazi and Hishamuddin Zainuddin},
journal= {arXiv preprint arXiv:1405.5714},
year = {2015}
}
Comments
12 pages, 6 figures, Research in Astronomy and Astrophysics, 2014