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Pradhan, Anirudh; Pandey, Prakash

Bianchi type I anisotropic magnetized cosmological models with varying \(\Lambda\). (English) Zbl 1079.83578

Int. J. Mod. Phys. D 12, No. 7, 1299-1314 (2003).
Summary: Bianchi type I magnetized cosmological models in the presence of a bulk viscous fluid are investigated. The source of the magnetic field is due to an electric current produced along the \(x\)-axis. The distribution consists of an electrically neutral viscous fluid with an infinite electrical conductivity. The coefficient of bulk viscosity is assumed to be a power function of mass density. The cosmological constant \(\Lambda\) is found to be positive and is a decreasing function of time which is supported by results from recent supernovae observations. The behaviour of the models in the presence and the absence of magnetic field are also discussed.

Cited in 18 Documents

MSC:

83F05 Relativistic cosmology
83C20 Classes of solutions; algebraically special solutions, metrics with symmetries for problems in general relativity and gravitational theory
82C05 Classical dynamic and nonequilibrium statistical mechanics (general)

Keywords:

Cosmology; Bianchi type I universe; variable cosmological constant; magnetofluid models
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\textit{A. Pradhan} and \textit{P. Pandey}, Int. J. Mod. Phys. D 12, No. 7, 1299--1314 (2003; Zbl 1079.83578)
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