Cosmic strings and viscous matter in a Kantowski-Sachs universe

Details Cosmic strings and viscous matter in a Kantowski-Sachs universe Cosmic strings and viscous matter in a Kantowski-Sachs universe

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992an....313..321w&link_type=abstract

Astronomische Nachrichten (ISSN 0004-6337), vol. 313, no. 6, p. 321-327.

Physics

Cosmology, Equations Of State, Matter (Physics), String Theory, Viscosity, Anisotropy, Background Radiation, Universe

Scientific paper

The evolution of the scale factors in a matter-plus-string-driven Kantowski-Sachs cosmology is studied here using two specific equations of state. The growth rate and relative expansion rates of each scale factor are examined as a measure of the smoothing out of the initial anisotropy. The bulk and shear viscosity are treated as perturbations and the possible destabilizing properties of these viscous effects are considered.

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