Anisotropic dark energy models with constant deceleration parameter

Details Anisotropic dark energy models with constant deceleration parameter Anisotropic dark energy models with constant deceleration parameter

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011gregr..43.1427k&link_type=abstract

General Relativity and Gravitation, Volume 43, Issue 5, pp.1427-1442

Mathematics

Logic

4

Bianchi Space-Time, Anisotropic Dark Energy, Constant Deceleration Parameter, Cosmological Models

Scientific paper

We consider a spatially homogeneous and totally anisotropic Bianchi-I space-time with perfect fluid (dark matter and standard visible matter) and anisotropic dark energy, which has dynamical energy density. The two sources are assumed to interact minimally and therefore their energy momentum tensors are conserved separately. Using suitable physical assumptions, the field equations are solved exactly. Various dark energy models are studied and it is found that quintessence model is suitable for describing the present evolution of the universe. The geometrical and kinematical features of the models and the behavior of the anisotropy of the dark energy, are examined in detail.

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