Some magnetized bulk viscous string cosmological models in General Relativity

Details Some magnetized bulk viscous string cosmological models in General Relativity Some magnetized bulk viscous string cosmological models in General Relativity

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ap%26ss.311..423y&link_type=abstract

Astrophysics and Space Science, Volume 311, Issue 4, pp.423-429

Astronomy and Astrophysics

Astrophysics

26

Scientific paper

Some Bianchi type-I viscous fluid string cosmological models with magnetic field are investigated. The viscosity coefficient of bulk viscous fluid is assumed to be a power function of mass density ξ( t)= ξ 0 ρ m , where ξ 0 and m are constants. To get a determinate model, we assume conditions ρ=(1+ ω) λ, where ρ is rest energy density, ω a positive constant and λ the string tension density and expansion θ is proportional to eigen value σ {1/1} of the shear tensor σ {/j i }. The behaviour of the models from physical and geometrical aspects in presence and absence of magnetic field is discussed.

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