Multiflavor and multiband observations of neutrinos from core collapse supernovae

TL;DR

This paper investigates the detection prospects of neutrinos from core collapse supernovae with jets, using multi-flavor and multi-band observations in km^3 detectors, enhancing the search for gamma-ray dark bursts.

Contribution

It provides calculations of neutrino event rates at different energies in IceCube and DeepCore, improving detection strategies for supernova-associated jets.

Findings

Approximately 4 events expected in DeepCore for a supernova at 10 Mpc.

Approximately 6 neutrino-induced cascades in IceCube/KM3Net at 10 Mpc.

Detection sensitivity varies between ~10 GeV and ~100 GeV neutrino energies.

Abstract

It has been proposed that the gamma ray burst - supernova connection may manifest itself in a significant fraction of core collapse supernovae possessing mildly relativistic jets that do not break out of the stellar envelope. Neutrinos would provide proof of the existence of these jets. In the present letter we calculate the event rate of ~100 GeV neutrino-induced cascades in km^3 detectors. We also calculate the event rate for ~10 GeV neutrinos of all flavors with the DeepCore low energy extension of IceCube. The added event rate significantly improves the ability of km^3 detectors to search for these gamma-ray dark bursts. For a core collapse supernova at 10 Mpc we find ~4 events expected in DeepCore and ~6 neutrino-induced cascades in IceCube/KM3Net. Observations at ~10 GeV are mostly sensitive to the pion component of the neutrino production in the choked jet, while the ~100 GeV depends on the kaon component. Finally we discuss extensions of the on-going optical follow-up programs by IceCube and Antares to include neutrinos of all flavors at ~10 GeV and neutrino-induced cascades at ~100 GeV energies.