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The Effect of Stellar Structure on Supernova Remnant Evolution

Published online by Cambridge University Press:  12 April 2016

Eric M. Jones
Affiliation:
University of California, Los Alamos Scientific Laboratory
Barham W. Smith
Affiliation:
University of California, Los Alamos Scientific Laboratory
William C. Straka
Affiliation:
Jackson State University

1. abstract

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One-dimensional hydrodynamic calculations have been done of 1E51 erg explosions in 15M stars. We have appended a steep external density gradient to the pre-supernova model of Weaver et al and find: (1) the outer shock wave decelerates throughout the pre-Sedov phase, (2) the expanding stellar envelope and the shocked interstellar material are Rayleigh-Taylor stable until the Sedov phase, and (3) steep internal density gradients are R-T unstable during the early expansion and may be the source of high velocity knots seen in Cas A.

Type
IX. Supernovae
Copyright
Copyright © Reidel 1980

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