Common envelope jets supernovae with a black hole companion as possible high-energy neutrino sources

We study high energy neutrino emission from relativistic jets launched by a black hole (BH) spiraling-in inside the envelope of red supergiant (RSG), and find that such common supernovae (CEJSNe) are potential source for ~10^15 eV neutrinos detected IceCube. first use stellar evolution code MESA to mimic effect on RSG envelope, substantially inflate envelope. then propagation extended in most cases do not penetrate but rather stalled. show can accelerate cosmic rays enough energies produce neutrinos. While stream out freely, gamma-rays accompany production remain trapped optically thick This explains lack observational association between gamma-rays. crudely estimate diffuse spectrum CEJSN CEJSNe with BH companions might have substantial contribution flux