2015/08/02 by Oded Papish, Papish, Oded, Avishai Gilkis +3
Engineering · Physics and Astronomy · #Combustion and Detonation Processes #Computational Fluid Dynamics and Aerodynamics #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Laser-Plasma Interactions and Diagnostics #Solar and Stellar Astrophysics (astro-ph.SR)
paper · pdf · doi:10.48550/arxiv.1508.00218
openalex publication_date 2015/08/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show that the standing accretion shock instability (SASI) that has been used to ease the shock revival in core collapse supernovae (CCSNe) neutrino-driven explosion models, might play a much more decisive role in supplying the stochastic angular momentum required to trigger an explosion with jittering jets. We find that if the kinetic energy associated with the transverse (non radial) motion of the SASI is larger than about ten percent of the energy associated with the energy of the accreted gas, then the stochastic angular momentum can reach about five percent of the Keplerian specific angular momentum around the newly born neutron star. Such an accretion flow leaves an open conical region along the poles with an average opening angle of about 5 degrees. The outflow from the open polar regions powers an explosion according to the jittering-jets model.