On cosmological observables in a swiss-cheese universe (Conference proceeding)

Details On cosmological observables in a swiss-cheese universe (Conference proceeding) On cosmological observables in a swiss-cheese universe (Conference proceeding)

2008-05-27

arxiv.org/abs/0805.4233v1

Astronomy and Astrophysics

Astrophysics

4 pages, 8 figures. Contribution to the proceedings of the 43rd Rencontres de Moriond, Cosmology Session, La Thuile, Italy, Ma

Scientific paper

By means of a toy Swiss-cheese cosmological model we will discuss how to set up and carry out in a physically meaningful way the idea of back-reaction, according to which dark energy could be an effective source. We will follow two distinct approaches. One is focused on how cosmological observables are affected by inhomogeneities, while the other is focused on a theoretical description of the inhomogeneous universe by means of a mean-field description.

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