| |
 |
| Paper: |
Hydrodynamic Instabilities in Jet-Induced Supernovae: Results of 2D Simulations |
| Volume: |
393, New Horizons in Astronomy: Frank N. Bash Symposium 2007 |
| Page: |
183 |
| Authors: |
Couch, S.M.; Craig Wheeler, J.; Milosavljevic, M. |
| Abstract: |
The structure of supernovae and young supernova remnants, such as SN 1987A and Cas A, suggests hydrodynamic instabilities during the course of the explosion. Various instabilities have been studied in detail for the case of spherical, neutrino shock-revival models, but a variety of studies, including spectropolarimetry, suggest that the intrinsic explosions are far from spherical. We study the intrinsically aspherical jet-induced model, wherein bipolar (and possibly unipolar) jets drive the explosion. We present preliminary results of numerical simulations of jet-induced explosions in a realistic stellar model. We find a growth of Rayleigh-Taylor instabilities at the contact discontinuity between the jet fluid and the post-shock stellar medium. The equatorial flow established by the obliquely colliding bipolar bow shocks is subject to shear-driven Kelvin-Helmholtz instabilities. These results are part of a larger study characterizing the large-scale structure of aspherical jet-induced supernovae. |
|
|
|
|
|
