Generation of Bianchi Type V Bulk Viscous Cosmological Models with Time Dependent $Λ$-Term

Details Generation of Bianchi Type V Bulk Viscous Cosmological Models with Time Dependent $Λ$-Term Generation of Bianchi Type V Bulk Viscous Cosmological Models with Time Dependent $Λ$-Term

2006-11-05

arxiv.org/abs/gr-qc/0611031v2

FizikaB15:163-182,2006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

22 pages, 3 figures, Some typos corrected

Scientific paper

Bianchi type V bulk viscous fluid cosmological models are investigated with dynamic cosmological term $\Lambda(t)$. Using a generation technique (Camci {\it et al.}, 2001), it is shown that the Einstein's field equations are solvable for any arbitrary cosmic scale function. Solutions for particular forms of cosmic scale functions are also obtained. The cosmological constant is found to be decreasing function of time, which is supported by results from recent type Ia supernovae observations. Some physical and geometrical aspects of the models are also discussed.

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