Astrophysics, abstract
astro-ph/0605313

From: Jean-Philippe Uzan [view email]

Date: Fri, 12 May 2006 08:14:29 GMT (922kb)

The acceleration of the universe and the physics behind it

Authors: Jean-Philippe Uzan (IAP)

Comments: 18 pages, 18 figures

Using a general classification of dark enegy models in four classes, we discuss the complementarity of cosmological observations to tackle down the physics beyond the acceleration of our universe. We discuss the tests distinguishing the four classes and then focus on the dynamics of the perturbations in the Newtonian regime. We also exhibit explicitely models that have identical predictions for a subset of observations.

http://arxiv.org/abs/astro-ph/0605313