7–14 mars 2009
La Thuile
Fuseau horaire Europe/Paris

Instability in coupled dark sectors

13 mars 2009, 08:30
20m
La Thuile

La Thuile

Rencontres de Moriond Planibel Hotel - La Thuile Aosta Valley 11016 La Thuile (Aosta), Italy Phone : 39 (0)1 65 88 45 41 Fax : 39 (0)1 65 88 45 35

Orateur

Mlle Laura Lopez Honorez (Universidad Autonoma de Madrid)

Description

In my talk, I will present our recent work on Coupled Dark matter-Dark energy model. I will show the results of our analysis of background and first order perturbation evolution equations. In particular, I will clarify the origin of early time non-adiabatic large scales instabilities, and point out a viable class of model in which the interaction in directly proportional to the dark energy density. I will then confront that model to recent cosmological data and show the correlations between the dark coupling and several cosmological parameters.

Author

Mlle Laura Lopez Honorez (Universidad Autonoma de Madrid)

Documents de présentation