Inhomogeneous Bulk Viscous Fluid Universe with Electromagnetic Field and Variable ∧-Term

• 来源期刊: 理论物理通讯(英文版)
• 年，卷（期）: 2008,（7）
• 页码范围: 279-288
• 页数: 10页
• 语种: 英文

摘要

Cylindrically symmetric inhomogeneous cosmological model for bulk viscous fluid distribution with electro-magnetic field is obtained.The source of the magnetic field is due to an electric current produced along the z-axis.F12 is the non-vanishing component of electromagnetic field tensor.To get the deterministic solution,it has been assumed that the expansion θ in the model is proportional to the shear σ.The values of cosmological constant for these models are found to be small and positive at late time,which are consistent with the results from recent supernovae Ia observations.Physical and geometric aspects of the models are also discussed in presence and absence of magnetic field.