Totally Anisotropic Cosmological Models with Bulk Viscosity for Variable G and Λ

• 作者: Manish K. Singh Manoj K. Verma Shri Ram
• 来源期刊: 现代物理(英文)
• 学科: 地球科学
• 关键词: Bianchi II COSMOLOGY HUBBLE Parameter BULK VISCOSITY VARIABLE G and Λ
• 年，卷（期）: 2012,（1）
• 页码范围: 9-15
• 页数: 7页
• 分类号: P1

摘要

Einstein's field equations with variable gravitational and cosmological constants are considered in the presence of bulk viscous fluid for the totally anisotropic Bianchi type II space-time in such a way as to preserve the energy momentum tensor. We have presented solutions of field equations which represent expanding, shearing and non-rotating cosmological models of the universe. The physical behaviours of the models are discussed .We observe that the results obtained match with recent observations of SNIa.