http://arxiv.org/abs/2210.03088
The origin of the high-energy astrophysical neutrinos discovered by IceCube remains largely unknown. Multi-messenger studies have indicated that the majority of these neutrinos come from gamma-ray-dark sources. Choked-jet supernovae (cjSNe), which are supernovae powered by relativistic jets stalled in stellar materials, may lead to neutrino emission via photohadronic interactions while the coproduced gamma rays are absorbed. In this paper, we perform an unbinned-maximum-likelihood analysis to search for correlations between IceCube’s 10-year muon-track events and our SN Ib/c sample, collected from publicly available catalogs. In addition to the conventional power-law models, we also consider the impacts of more realistic neutrino emission models for the first time, and study the effects of the jet beaming factor in the analyses. Our results show no significant correlation. Even so, the conservative upper limits we set to the contribution of cjSNe to the diffuse astrophysical neutrino flux still allow SNe Ib/c to be the dominant source of astrophysical neutrinos observed by IceCube. We discuss implications to the cjSNe scenario from our results and the power of future neutrino and supernova observations.
P. Chang, B. Zhou, K. Murase, et. al.
Fri, 7 Oct 22
55/62
Comments: 11 pages, 7 figures. Comments are welcome
You must be logged in to post a comment.