Massive scalar field interacting with viscous fluid distribution in cosmological models

Details Massive scalar field interacting with viscous fluid distribution in cosmological models Massive scalar field interacting with viscous fluid distribution in cosmological models

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.150...65s&link_type=abstract

Astrophysics and Space Science, Volume 150, Issue 1, pp.65-74

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

The study of Einstein's field equations describing Robertson-Walker cosmological models with massive scalar field and viscous fluid representing the matter has been made. The problem has been investigated with and without the source density in the wave equation. Corresponding exact solutions of the field equations have been obtained under different physical equations of state: namely, (i) dust distribution, (ii) Zeldovich fluid distribution, (iii) disordered distribution of radiation subject to physically realistic conditions. The physical interpretations of the physically realistic solutions has been investigated. It has been found that physically realistic solutions has been obtained for closed cosmological models only.

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