Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-07-13
Astrophys.Space Sci.310:13-18,2007
Astronomy and Astrophysics
Astrophysics
5 pages, 3 eps figures
Scientific paper
10.1007/s10509-007-9389-8
In this work we investigate the evolution of matter density perturbations for quintessence models with a self-interaction potential that is a combination of exponentials. One of the models is based on the Einstein theory of gravity, while the other is based on the Brans-Dicke scalar tensor theory. We constrain the parameter space of the models using the determinations for the growth rate of perturbations derived from data of the 2-degree Field Galaxy Redshift Survey.
Cardenas Rolando
Gonzalez Tame
Leyva Yoelsy
Quiros Israel
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