SingularityFree RW Viscous Fluid Cosmological Models in the Presence of Massive Scalar Fields
Abstract
Singularityfree RobertsonWalker 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.
 Publication:

Astrophysics and Space Science
 Pub Date:
 September 1994
 DOI:
 10.1007/BF00657860
 Bibcode:
 1994Ap&SS.219...67R
 Keywords:

 Boson Fields;
 Cosmology;
 Field Theory (Physics);
 Intergalactic Media;
 Interstellar Matter;
 Mathematical Models;
 Universe;
 Viscous Fluids;
 Einstein Equations;
 Equations Of State;
 Hubble Constant;
 KleinGordon Equation;
 Mesons;
 Astrophysics