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Totally Anisotropic Cosmological Models with Bulk Viscosity for Variable G and Λ

Totally Anisotropic Cosmological Models with Bulk Viscosity for Variable G and Λ
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摘要 Einstein's field equations with variable gravitational and cosmological constants are considered in the presence of bulk viscous fluid for the totally anisotropic Bianchi type II space-time in such a way as to preserve the energy momentum tensor. We have presented solutions of field equations which represent expanding, shearing and non-rotating cosmological models of the universe. The physical behaviours of the models are discussed .We observe that the results obtained match with recent observations of SNIa. Einstein's field equations with variable gravitational and cosmological constants are considered in the presence of bulk viscous fluid for the totally anisotropic Bianchi type II space-time in such a way as to preserve the energy momentum tensor. We have presented solutions of field equations which represent expanding, shearing and non-rotating cosmological models of the universe. The physical behaviours of the models are discussed .We observe that the results obtained match with recent observations of SNIa.
机构地区 不详
出处 《Journal of Modern Physics》 2012年第1期9-15,共7页 现代物理(英文)
关键词 Bianchi II COSMOLOGY HUBBLE Parameter BULK VISCOSITY VARIABLE G and Λ Bianchi II Cosmology Hubble Parameter Bulk Viscosity Variable G and Λ
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