High energy processes in common envelope jets supernovae

Common envelope jets supernovae (CEJSNe) serve as astrophysical sites of high energy processes.

We present two scenarios that might account for enigmatic processes studied over the past years.

1.We study r-process feasibility inside jets launched by a cold neutron star  spiralling-in inside the core

of a red supergiant (RSG), and find that such CEJSN events might be a significant source of heavy r-process elements in the early Universe.

2.We study high energy neutrino emission from relativistic jets launched by a black hole spiralling-in inside the envelope of a RSG, and find that CEJSNe with a BH companion are a potential source for the ≳10^15eV neutrinos detected by IceCube.