Eur. Phys. J. Plus (2014) 129: 36
https://doi.org/10.1140/epjp/i2014-14036-0

Regular Article

Bianchi type-VI₀ bulk viscous string cosmological model in Brans-Dicke scalar-tensor theory of gravitation

¹ Department of Basic Sciences and Humanities, Miracle Education Society Group of Institutions, A.P., Vizianagaram, India
² GMRIT, A.P., Rajam, India
³ Mathematics Department, JNTU college of Engg, A.P., Anantapur, India
⁴ Mathematics Department, MVGR College of Engg, A.P., Vizianagaram, India

^* e-mail: reddy_einstein@yahoo.com

Received: 28 November 2013
Revised: 23 December 2013
Accepted: 25 January 2014
Published online: 27 February 2014

Abstract

In this paper, we derive Brans-Dicke (Phys. Rev. 124, 925 (1961)) field equations with the help of a spatially homogeneous and anisotropic Bianchi type-VI₀ metric, in the presence of a bulk viscous fluid, containing one-dimensional cosmic strings. A cosmological model, which represents a bulk viscous string universe in this theory of gravitation, is obtained using some plausible physical conditions. Some physical and kinematical properties of the model are also discussed.