The magnetar model of the superluminous supernova GAIA16apd and the explosion jet feedback mechanism (JFM)

TL;DR

This paper proposes that magnetars and super-energetic supernovae like GAIA16apd can be explained by a jet feedback mechanism in core-collapse supernovae, emphasizing the role of rapidly rotating neutron stars formed via jet-driven explosions.

Contribution

It introduces a relation between neutron star spin energy and explosion energy, supporting a jet-driven supernova paradigm over neutrino-driven models.

Findings

Rapidly rotating neutron stars are likely in energetic explosions.

Magnetars can have significant energy in super-energetic supernovae.

Supports jet feedback mechanism as a paradigm for core-collapse supernovae.

Abstract

Under the assumption that jets explode core collapse supernovae in a negative jet feedback mechanism (JFM), I show that rapidly rotating neutron stars are likely to be formed when the explosion is very energetic. Under the assumption that an accretion disk or an accretion belt around the just-formed neutron star launch jets and that the accreted gas spins-up the just-formed neutron star, I derive a crude relation between the energy that is stored in the spinning neutron star and the explosion energy. This relation reads Espin/Eexp~(Eexp/1e52erg). It shows that within the frame of the JFM explosion model of core collapse supernovae, spinning neutron stars, such as magnetars, might have significant energy in super-energetic explosions. The existence of magnetars, if confirmed, such as in the recent super-energetic supernova GAIA16apd, further supports the call for a paradigm shift from neutrino-driven to jet-driven core-collapse supernova mechanisms.