Possible indications for jittering jets in core collapse supernova explosion simulations

Abstract

I analyse recent three-dimensional hydrodynamical simulations of exploding core collapse supernovae (CCSNe) and find that a rapid increase in the diagnostic explosion energy occurs parallel to, or very shortly after, the accretion of gas with relatively large amount of angular momentum and/or specific angular momentum. The tendency towards a positive correlation between angular momentum accretion and the increase in the explosion energy appears despite the absence of magnetic fields in the simulations. I speculate that the inclusion of magnetic fields would make this positive correlation much stronger and would increase the explosion energy. At times, the high angular momentum accretion leads to a bipolar outflow that in some cases changes directions. I argue that there is a mutual influence between neutrino heating and stochastic angular momentum, and that both operate together to explode the star with bipolar outflows that change directions, namely, jittering jets. This study calls for a deep flow analysis of simulations of CCSNe, e.g., to present the flow structure, the density, and the angular momentum of the flow near the newly born neutron star (NS).

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References in corpus (10)

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Cited by in corpus (8)

• Three-dimensional Models of Core-collapse Supernovae From Low-mass Progenitors With Implications for Crab
• Supplying angular momentum to the jittering jets explosion mechanism using inner convection layers
• Amplifying magnetic fields of a newly born neutron star by stochastic angular momentum accretion in core collapse supernovae
• Jet-shaped geometrically modified light curves of core collapse supernovae
• Simulating the inflation of bubbles by late jets in core collapse supernova ejecta
• Enhanced mass-loss rate evolution of stars with $\gtrsim 18M_{\odot }$ and missing optically-observed type II core-collapse supernovae
• Low energy core collapse supernovae in the frame of the jittering jets explosion mechanism
• Possible post-kick jets in SN 1987A