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Viscous fluid cosmological models in LRS Bianchi type V universe with varyingΛ

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Czechoslovak Journal of Physics Aims and scope

Abstract

Some LRS Bianchi type V viscous-fluid cosmological models are investigated, in which the coefficient of shear viscosity is considered as proportional to the scale of expansion in the model. This leads toA=Bn, whereA andB are metric potentials,n being a constant. The coefficient of bulk viscosity is also assumed to be a power function of mass density. The cosmological constant is found to be a decreasing function of time, which is supported by results from recent type Ia supernovae observations. Some physical aspects of the models are also discussed.

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Authors and Affiliations

  1. Department of Mathematics, Hindu Post-graduate College, 232 331, Zamania, Ghazipur, India

    Anirudh Pradhan

  2. Department of Physics, K.N. Post-graduate College, Sant Ravidas Nagar (Gyanpur), 221 304, Bhadohi, India

    Lallan Yadav & Anil Kumar Yadav

Authors
  1. Anirudh Pradhan
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  2. Lallan Yadav
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  3. Anil Kumar Yadav
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Pradhan, A., Yadav, L. & Yadav, A.K. Viscous fluid cosmological models in LRS Bianchi type V universe with varyingΛ . Czech J Phys 54, 487–498 (2004). https://doi.org/10.1023/B:CJOP.0000020586.43735.b5

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  • DOI: https://doi.org/10.1023/B:CJOP.0000020586.43735.b5

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