The impact of vorticity waves on the shock dynamics in core-collapse supernovae

Abstract

Convective perturbations arising from nuclear shell burning can play an important role in propelling neutrino-driven core-collapse supernova explosions. In this work, we analyze the impact of vorticity waves on the shock dynamics and the post-shock flow using the solution of the linear hydrodynamics equations. We show that the entropy perturbations generated by the interaction of the shock with vorticity waves may play a dominant role in generating buoyancy-driven turbulence in the gain region. We estimate that the resulting reduction in the critical luminosity is 17-24%, which approximately agrees with the results of three-dimensional neutrino-hydrodynamics simulations.

Submitted to MNRAS

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Cited by in corpus (12)

• Hydrodynamics of core-collapse supernovae and their progenitors
• Turbulence in Core-Collapse Supernovae
• 3D Simulations of Strongly Magnetised Non-Rotating Supernovae: Explosion Dynamics and Remnant Properties
• Effects of rotation and magnetic field on the revival of a stalled shock in supernova explosions
• Wave heating from proto-neutron star convection and the core-collapse supernova explosion mechanism
• Effect of stellar rotation on the development of post-shock instabilities during core-collapse supernovae
• The impact of progenitor asymmetries on the neutrino-driven convection in core-collapse supernovae
• Acoustic wave generation in collapsing massive stars with convective shells
• Fallback onto Kicked Neutron Stars and its Effect on Spin-Kick Alignment
• Impact of rotation on the evolution of convective vortices in collapsing stars
• Response of nuclear-dissociating shocks to vorticity perturbations
• Turbulence Generation by Shock-Acoustic-Wave Interaction in Core-Collapse Supernovae