Reviving the stalled shock by jittering jets in core collapse supernovae: The key role of magnetic fields

Abstract

I find that an ingredient that was added in a recent study to facilitate the delayed neutrino explosion mechanism of core collapse supernovae, namely, large scale perturbations in the pre-collapse core, has a larger positive influence on the jittering jets explosion mechanism. By following the specific angular momentum of the accreted mass on to the newly born neutron star, I find that the accreted mass is likely to form intermittent accretion belts and disks, although they might lack axisymmetrical structure. These accretion belts and disks are likely to launch jets, but this can be simulated only if magnetic fields are included in the numerical code, as well as high numerical resolution that follows the rotation of the newly born neutron star and the shear in the accretion flow. I also discuss the possibility that the rotation of the pre-collapse core is important in increasing the shear in the accretion flow, hence the amplification of the magnetic fields. I call for a paradigm shift from a neutrino-driven explosion mechanism of massive stars to a jet-driven explosion mechanism aided by neutrino heating. Such a paradigm shift will bring the recognition that to simulate core collapse supernovae one must use magneto-hydrodynamical numerical codes.

An astro-ph paper only

References in corpus (4)

• The imprints of the last jets in core collapse supernovae
• The progenitors of core-collapse supernovae suggest thermonuclear origin for the explosions
• Explaining the morphology of supernova remnant (SNR) 1987A with the jittering jets explosion mechanism
• The non-linear onset of neutrino-driven convection in two and three-dimensional core-collapse supernovae

Cited by in corpus (10)

• Emission peaks in the light curve of core collapse supernovae by late jets
• Remnant masses of core collapse supernovae in the jittering jets explosion mechanism
• 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
• Possible indications for jittering jets in core collapse supernova explosion simulations
• Low energy core collapse supernovae in the frame of the jittering jets explosion mechanism
• Storing magnetic fields in pre-collapse cores of massive stars
• Pre-supernova outbursts by core magnetic activity