Non linear predictions from linear theories in models with Dark Energy

Details Non linear predictions from linear theories in models with Dark Energy Non linear predictions from linear theories in models with Dark Energy

2002-07-26

arxiv.org/abs/astro-ph/0207581v2

NewAstron.8:173-178,2003

Astronomy and Astrophysics

Astrophysics

13 pages, 3 new figures included, references added. Accepted for pubblication in New Astronomy

Scientific paper

10.1016/S1384-1076(02)00226-9

We study the cluster mass function and its evolution in different models with Dark Energy arising from a self--interacting scalar field, with Ratra-Peebles and SUGRA potentials. Computations are based on a Press & Schechter approximation. The mass functions we obtain are compared with results holding for open models or models with Dark Energy due to a cosmological constant. Evolution results, in the Dark Energy cases, closely approach open models.

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