A cosmological model with both deceleration and acceleration

Details A cosmological model with both deceleration and acceleration A cosmological model with both deceleration and acceleration

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ap%26ss.318..103s&link_type=abstract

Astrophysics and Space Science, Volume 318, Issue 1-2, pp. 103-107

Mathematics

Logic

3

Cosmological Models, Hubble&Rsquo, S Parameter, Acceleration, Deceleration, Bianchi Space-Time

Scientific paper

In this paper, we investigate a variation law for Hubble’s parameter in the curved, expanding background of spatially homogeneous, anisotropic Bianchi type I space-time. By choosing a particular form of the generalized Hubble’s parameter, which gives an early deceleration and late time acceleration for the anisotropic Bianchi type I cosmological model, we show that the model approaches isotropy and tends to a de Sitter universe at late times. The cosmological term asymptotically tends to a genuine cosmological constant and the solution is consistent with recent observations.

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