The peculiar velocity field in a quintessence model

Details The peculiar velocity field in a quintessence model The peculiar velocity field in a quintessence model

2002-03-13

arxiv.org/abs/astro-ph/0203205v1

Mon.Not.Roy.Astron.Soc.335:30-32,2002

Astronomy and Astrophysics

Astrophysics

11 pages, 3 figures

Scientific paper

10.1046/j.1365-8711.2002.05605.x

We investigate the evolution of matter density perturbations and some properties of the peculiar velocity field for a special class of exponential potentials in a scalar field model for quintessence, for which a general exact solution is known. The data from the 2-degree Field Galaxy Redshift Survey (2dFGRS) suggest a value of the today pressureless matter density Omega_M0 = 0.18 +- 0.05.

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