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On Kantowski-Sachs Viscous Fluid Model in Bimetric Relativity
Department of Mathematics, K.S.U.B. College, Bhanjanagar, India
Department of Mathematics, Sri Jagannath Mahavidyalaya, Rambha, India
Department of Mathematics, U.N. College, Soro, India
- 1 Department of Mathematics, K.S.U.B. College, Bhanjanagar, India
- 2 Department of Mathematics, Sri Jagannath Mahavidyalaya, Rambha, India
- 3 Department of Mathematics, U.N. College, Soro, India
International Journal of Astronomy and Astrophysics·Volume 05 (2015)·Pages 47–55·Published 4 March 2015·DOI10.4236/ijaa.2015.51007
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Abstract
Kantowski-Sachs plane symmetric models are investigated in bimetric theory of gravitation proposed by Rosen [1] 08D0C9EA79F9BACE118C8200AA004BA90B02000000080000000E0000005F005200650066003400310035003100330038003900340034000000 in the context of bulk viscous fluid. Taking conservation law and the equation of state, two different models of the universe are obtained. It is observed that Kantowski-Sachs vacuum model obtained in first case and bulk viscous fluid model obtained in second case. It is also observed that the bulk viscous cosmological model always represents an accelerated universe and consistent with the recent observations of type-1a supernovae. Some physical and geometrical features of the viscous fluid model are studied.
KeywordsBimetric TheoryViscous FluidKantowski-Sachs
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