Evolution of radiating viscous spheres and gravitational collapse

Details Evolution of radiating viscous spheres and gravitational collapse Evolution of radiating viscous spheres and gravitational collapse

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cajph..67..855h&link_type=abstract

Canadian Journal of Physics (ISSN 0008-4204), vol. 67, Sept. 1989, p. 855-862.

Physics

10

Anisotropic Fluids, Gravitational Collapse, Spheres, Viscous Fluids, Continuity Equation, Iterative Solution, Minkowski Space

Scientific paper

A method for studying radiating fluid spheres by Herrera et al. (1980, 1982) is extended here to the case when the viscosity is not negligible. It is shown that the inclusion of viscosity in the method is not straightforward and requires far more substantial modifications of the method than was the case for thermal conduction and anisotropy. An explicit example is used to elucidate the role played by viscosity in the collapse of an anisotropic radiating sphere. It is shown that viscosity affects the final outcome of the collapse, leading in most cases to less compact spheres than those resulting from a nonviscous configuration.

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