Radial two-fluid cosmological models

Details Radial two-fluid cosmological models Radial two-fluid cosmological models

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.155..193c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 155, no. 2, May 1989, p. 193-201.

Astronomy and Astrophysics

Astrophysics

1

Astronomical Models, Cosmology, Space-Time Functions, Two Fluid Models, Curvature, Einstein Equations, Gravitational Fields, Polar Coordinates, Thermodynamics

Scientific paper

Consideration is given to two-fluid radial zero-curvature Friedmann-Robertson-Walker cosmological models. The models are exact solutions of Einstein's field equations and the laws of thermodynamics in which the source of the gravitational field is a comoving radiation field and a radial noncomoving imperfect fluid. It is found that the physical quantities depend on the radial coordinate, r, as well as t, and may be difficult to interpret cosmologically.

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