Anisotropic universe with cosmic strings and bulk viscosity |
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| Authors: | Sunil Kumar Tripathy Dipanjali Behera Tushar Ranjan Routray |
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| Institution: | (1) Department of Mathematics, Sobhasaria Engineering College, NH-11, Sikar, 332 001, India;(2) Department of Mathematics, Hindu Post-graduate College, Zamania, 232 331, Ghazipur, India |
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| Abstract: | Spatially homogeneous and anisotropic LRS Bianchi type-I string cosmological models are studied in the frame work of general
relativity when the source for the energy momentum tensor is a bulk viscous fluid containing one dimensional strings. A barotropic
equation of state for the pressure and density is assumed to get determinate solutions of the field equations. The bulk viscous
pressure is assumed to be proportional to the energy density. The physical and kinematical properties of the models are discussed.
The role of bulk viscosity in getting an inflationary phase in the universe is studied. |
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