The impact of progenitor asymmetries on the neutrino-driven convection in core-collapse supernovae

Understand

The explosion of massive stars in core-collapse supernovae may be aided by the convective instabilities that develop in their innermost nuclear burning shells.

• The resulting fluctuations support the explosion by generating additional turbulence behind the supernova shock.
• It was suggested that the buoyant density perturbations arising from the interaction of the pre-collapse asymmetries with the shock may be the primary contributor to the enhancement of the neutrino-driven turbulent convection in the post-shock region.
• Employing three-dimensional numerical simulations of a toy model, we investigate the impact of such density perturbations on the post-shock turbulence.