Cosmological models in generalized scalar-tensor theory with cosmological term and bulk viscosity

Details Cosmological models in generalized scalar-tensor theory with cosmological term and bulk viscosity Cosmological models in generalized scalar-tensor theory with cosmological term and bulk viscosity

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ap%26ss.275..275s&link_type=abstract

Astrophysics and Space Science, v. 275, Issue 3, p. 275-283 (2001).

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

Exponential and power law solutions for homogeneous cosmological models have been discussed in a generalized scalar-tensor theory where both the cosmological term Λ and coupling parameter ω are taken to be functions of the scalar field φ, along with the bulk viscous stress of the cosmic fluid. Assuming simple relationships of the scalar field with the cosmological term and the coupling parameter, all the solutions are studied in Dicke's revised units. By use of a conformal transformation, the solutions are also expressed in atomic units.

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