The effect of Stellar structure on supernova remnant evolution |
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| Authors: | Eric M. Jones Barham W. Smith Wiiam C. Straka |
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| Affiliation: | (1) University of California, Los Alamos Scientific Laboratory, USA;(2) University of California, Los Alamos Scientific Laboratory, USA;(3) Jackson State University, USA |
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| Abstract: | 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. |
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