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Time dependent viscous string cloud cosmological models |
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| Authors: | S K Tripathy S K Nayak S K Sahu T R Routray |
| Institution: | (1) Department of Physics, Sundargarh Engineering College, Kirei, Sundargarh, Orissa, 770073, India;(2) P.G. Department of Physics, Sambalpur University, Jyotivihar, Sambalpur, Orissa, 768019, India;(3) Department of Mathematics, Sundargarh Engineering College, Kirei, Sundargarh, Orissa, 770073, India;(4) P.G. Department of Mathematics, Lingaya’s University, Faridabad, 121002, Delhi-NCR, India |
| Abstract: | Bianchi type-I string cosmological models are studied in Saez-Ballester theory of gravitation when the source for the energy momentum tensor is a viscous string cloud coupled to gravitational field. The bulk viscosity is assumed to vary with time and is related to the scalar expansion. The relationship between the proper energy density ρ and string tension density λ are investigated from two different cosmological models. |
| Keywords: | String Viscosity Saez-Ballester theory |
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