Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.323...91t&link_type=abstract
Astrophysics and Space Science, Volume 323, Issue 1, pp.91-96
Astronomy and Astrophysics
Astrophysics
1
String, Viscosity, Saez-Ballester Theory
Scientific paper
Bianchi type-I string cosmological models are studied in Saez-Ballester theory of gravitation when the source for the energy momentum tensor is a viscous string cloud coupled to gravitational field. The bulk viscosity is assumed to vary with time and is related to the scalar expansion. The relationship between the proper energy density ρ and string tension density λ are investigated from two different cosmological models.
Nayak Saroj K.
Routray Tushar Ranjan
Sahu Kailash S.
Tripathy Sunil Kumar
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