Astrophysics and Space Science

, Volume 219, Issue 1, pp 67–75 | Cite as

Singularity-free RW viscous fluid cosmological models in presence of massive scalar fields

  • A. R. Roy
  • P. K. Maiti
Article

Abstract

Singularity-free Robertson-Walker cosmological models (RWCM) are developed by considering the cosmic matter as composed of an interacting viscous fluid (with zero bulk viscosity) and a massive scalar (meson) field. Solutions are obtained for two different cases, viz., when the Hubble's parameterH is epoch independent and whenH is epoch dependent. A solution corresponding to RWCM with only the massive scalar field as the matter content is also presented. The essential physical behaviour of the models developed are discussed in detail.

Keywords

Viscosity Matter Content Scalar Field Cosmological Model Massive Scalar 

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Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • A. R. Roy
    • 1
  • P. K. Maiti
    • 1
  1. 1.Department of MathematicsI.I.T.KharagpurIndia

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