English

Cosmic Behavior, Statefinder Diagnostic and $w-w^{\prime}$ Analysis for Interacting NADE model in Non-flat Universe

General Relativity and Quantum Cosmology 2011-02-03 v2

Abstract

We give a brief review of interacting NADE model in non-flat universe. we study the effect of spatial curvature Ωk\Omega_{k}, interaction coefficient α\alpha and the main parameter of NADE, nn, On EoS parameter wdw_{d} and deceleration parameter qq. We obtain a minimum value for nn in both early and present time, in order to that our DE model crosses the phantom divide. Also in a closed universe, changing the sign of qq is strongly dependent on α\alpha. It has been shown that the quantities wdw_{d} and qq have a different treatment for various spatial curvature. At last, we calculate the statefinder diagnostic and ww w-w^{\prime} analysis in non flat universe. In non flat universe, the statefinder trajectory is discriminated by both nn and α\alpha.

Keywords

Cite

@article{arxiv.1003.0543,
  title  = {Cosmic Behavior, Statefinder Diagnostic and $w-w^{\prime}$ Analysis for Interacting NADE model in Non-flat Universe},
  author = {A. Khodam-Mohammadi and M. Malekjani},
  journal= {arXiv preprint arXiv:1003.0543},
  year   = {2011}
}

Comments

18 pages, 4 figures, Accepted in Astrophysics & Space Science Journal