Boosting jittering jets by neutrino heating in core collapse supernovae

Abstract

I estimate the energy that neutrino heating add to the outflow that jets induce in the collapsing core material in core collapse supernovae (CCSNe), and find that this energy crudely doubles the energy that the jets deposit into the core. I consider the jittering jets explosion mechanism where there are several stochastic jet-launching episodes, each lasting for about 0.01-0.1 seconds. The collapsing core material pass through the stalled shock at about 100 km and then slowly flows onto the protoneutron star (NS). I assume that the proto-NS launches jittering jets, and that the jets break out from the stalled shock. I examine the boosting process by which the high-pressure gas inside the stalled shock, the gain region material, expands alongside the jets and does work on the material that the jets shock, the cocoon. This work is crudely equal to the energy that the original jets carry. I argue that the coupling between instabilities, stochastic rotation, magnetic fields, and jittering jets lead to most CCSN explosions. In other cases, the pre-collapse core is rapidly rotating and therefore ordered rotation replaces stochastic rotation and fix jets replace jittering jets.

Powering Luminous Core Collapse Supernovae with Jets

“…Recent studies concentrate on two core collapse supernova (CCSN) explosion mechanisms that utilize the gravitational energy that the core of a massive star releases as it collapses to form a neutron star (NS). These are the delayed neutrino mechanism (Bethe & Wilson 1985; for later studies see, e.g., Heger et al 2003;Janka 2012;Nordhaus et al 2012;Couch & Ott 2013;Bruenn et al 2016;Janka et al 2016;O'Connor & Couch 2018;Müller et al 2019;Burrows & Vartanyan 2021;Fujibayashi et al 2021;Boccioli et al 2022;Nakamura et al 2022) and the jittering jets explosion mechanism (Soker 2010; for later papers see, e.g., Papish & Soker 2014;Gilkis & Soker 2015;Soker 2019;Quataert et al 2019;Soker 2020;Antoni & Quataert 2022;Shishkin & Soker 2022;Soker 2022aSoker , 2022b.…”

Feeding post core collapse supernova explosion jets with an inflated main sequence companion

“…Some give a larger role to jets, although not in most CCSNe, e.g., Sobacchi et al (2017) who speculate that relativistic jets power all SESNe. We, on the other hand, take it that jets explode the majority, or even all, CCSNe (e.g., Papish & Soker 2011;Gilkis & Soker 2015;Soker 2017b;Shishkin & Soker 2021Soker 2022b). Jets can account for other properties of some CCSNe.…”