Holographic Dark Energy with Curvature

Details Holographic Dark Energy with Curvature Holographic Dark Energy with Curvature

2010-09-29

arxiv.org/abs/1009.5910v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 2 figures

Scientific paper

In this paper we consider an holographic model of dark energy, where the length scale is the Hubble radius, in a non flat geometry. The model contains the possibility to alleviate the cosmic coincidence problem, and also incorporate a mechanism to obtain the transition from decelerated to an accelerated expansion regime. We derive an analytic form for the Hubble parameter in a non flat universe, and using it, we perform a Bayesian analysis of this model using SNIa, BAO and CMB data. We find from this analysis that the data favored a small value for $\Omega_k$, however high enough to still produce cosmological consequences.

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