Axially Symmetric Bulk Viscous String Cosmological Models in GR and Brans-Dicke Theory of Gravitation. (6th November 2013)

• Record Type: Journal Article
• Authors: Rao, V. U. M.; Neelima, D.
• Other Names: Bothun G. Academic Editor.; Dehnen H. Academic Editor.; Zhao H. Academic Editor.
• Is Part Of: ISRN astronomy and astrophysics. Volume 2013(2013)
• Publication Date: 2013-11-06
• Subjects: Astronomy -- Periodicals; Astrophysics -- Periodicals; Astronomy; Astrophysics; Electronic journals; Periodicals; Electronic journals; 520
• DOI: 10.1155/2013/543483
• Languages: English
• ISSNs: 2090-4738

Abstract

Abstract : Axially symmetric string cosmological models with bulk viscosity in Brans-Dicke (1961) and general relativity (GR) have been studied. The field equations have been solved by using the anisotropy feature of the universe in the axially symmetric space-time. Some important features of the models, thus obtained, have been discussed. We noticed that the presence of scalar field does not affect the geometry of the space-time but changes the matter distribution, and as a special case, it is always possible to obtain axially symmetric string cosmological model with bulk viscosity in general relativity.