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Bulk Viscous Cosmic Strings Coupled with Mass Less Scalar Field

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We investigate Bianchi type V string cosmological models coupled with bulk viscous fluid source. Exact solutions of the Einstein field equations in the presence of massless scalar field are presented via a suitable power law assumption. The cosmological constant Λ is found to be a decreasing function of time and positive which is corroborated by results from recent supernovae Ia observations. The models obtained here are theoretically satisfactory and therefore there is a possibility that there may be less known objects in this universe which may be represented by our models obtained here and many unknown properties of this universe may be explored and unfolded in the study of these models.
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Keywords: ANISOTROPY; BULK VISCOSITY; COSMOLOGICAL MODELS; DECELERATION PARAMETER; HUBBLE'S PARAMETER; SCALAR FIELD

Document Type: Research Article

Publication date: June 1, 2015

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  • Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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