Mixing in the Supernova Explosion of Red Supergiants

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Session 19 -- Supernovae and SNRs
Oral presentation, Monday, 2:30-4:00, Zellerbach Auditorium Room

[19.04] Mixing in the Supernova Explosion of Red Supergiants

Marc Herant \& S. E. Woosley (UCSC)

Shock propagation, mixing, and clumping are studied in the explosion of red supergiants as Type II-p and II-L supernovae using a two-dimensional smooth particle hydrodynamic (SPH) code. We show that extensive Rayleigh-Taylor instabilities develop in the ejecta in the wake of the reverse shock wave. In all cases, the shell structure of the progenitor is obliterated to leave a clumpy, well mixed supernova remnant. However, the occurrence of mass loss during the lifetime of the progenitor can significantly change this scenario. These results are independent of the type II supernova explosion mechanism.

Monday program listing