Entropy-corrected new agegraphic dark energy in Horava-Lifshitz cosmology

Abstract

We study the entropy-corrected version of the new agegraphic dark energy (NADE) model and dark matter in a spatially non-flat Universe and in the framework of Hořava-Lifshitz cosmology. For the two cases containing noninteracting and interacting entropy-corrected NADE (ECNADE) models, we derive the exact differential equation that determines the evolution of the ECNADE density parameter. Also the deceleration parameter is obtained. Furthermore, using a parametrization of the equation of state parameter of the ECNADE model as $ω_Λ(z)=ω_0+ω_1 z$, we obtain both $ω_0$ and $ω_1$. We find that in the presence of interaction, the equation of state parameter $ω_0$ of this model can cross the phantom divide line which is compatible with the observation.

20 pages, 2 figures, to appear in 'Astrophysics and Space Science'