Holographic Dark Energy with Curvature

Дата и время публикации : 2010-09-29T15:23:08Z

Авторы публикации и институты :
Victor H. Cardenas
Roberto G. Perez

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 6 pages, 2 figures
Первичная категория: astro-ph.CO

Все категории : astro-ph.CO, gr-qc

Краткий обзор статьи: 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.

Category: Physics