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arxiv: 1003.0543 · v2 · pith:3GHYELFInew · submitted 2010-03-02 · 🌀 gr-qc

Cosmic Behavior, Statefinder Diagnostic and w-w^(prime) Analysis for Interacting NADE model in Non-flat Universe

classification 🌀 gr-qc
keywords universealphamodelnadeparameterstatefinderanalysiscurvature
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We give a brief review of interacting NADE model in non-flat universe. we study the effect of spatial curvature $\Omega_{k}$, interaction coefficient $\alpha $ and the main parameter of NADE, $n$, On EoS parameter $w_{d}$ and deceleration parameter $q$. We obtain a minimum value for $n$ 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 $q$ is strongly dependent on $\alpha$. It has been shown that the quantities $w_{d}$ and $q$ have a different treatment for various spatial curvature. At last, we calculate the statefinder diagnostic and $ w-w^{\prime}$ analysis in non flat universe. In non flat universe, the statefinder trajectory is discriminated by both $n$ and $\alpha$.

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