The theory of core-collapse Supernovae (SNe) has been developed during the past five decades, and nowadays can be considered a field mature enough to be studied at the interface of gravitational, particle, nuclear and numerical physics. Recent realistic 3D SN simulations have revealed that successful explosions can be self-triggered only by accounting for the heating by neutrinos...
During the accretion phase of a core-collapse supernova, dark-photon cooling can be largest in the gain layer below the stalled shock wave, in this way counter-act the usual shock rejuvenation by neutrino energy deposition, and thus prevent the explosion. The peculiar energy-loss profile derives from the resonant nature of dark-photon production. The largest effect obtains for the mass range...