Rayleigh-Taylor driven SN explosions : a two-dimensional numerical study.
Abstract
A two-dimensional numerical hydrodynamic study shows that a Rayleigh-Taylor unstable gradient, which can develop after the bounce of a collapsing stellar core, gives rise to a dramatic, large-scale l = 2 overturn of the whole core. The unstable pressure gradient in these calculations is artificially weak because the equation of state used causes an early bounce at low density. A more dramatic overturn with greater kinetic and neutrino energy release is to be expected with recent equations of state, given sufficient time to reduce diffusively and convectively any transient shock-produced entropy-stabilizing gradients.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1980
- DOI:
- 10.1086/183274
- Bibcode:
- 1980ApJ...238L.139L
- Keywords:
-
- Rayleigh Waves;
- Stellar Models;
- Supernovae;
- Taylor Instability;
- Equations Of State;
- Gravitational Collapse;
- Mathematical Models;
- Neutrinos;
- Astrophysics