Timing the Neutrino Signal of a Galactic Supernova

Abstract

We study several methods for timing the neutrino signal of a Galactic supernova (SN) for different detectors via Monte Carlo simulations. We find that, for the methods we studied, at a distance of $10$kpc both Hyper-Kamiokande and IceCube can reach precisions of $\sim 1$ms for the neutrino burst, while a potential IceCube Gen2 upgrade will reach submillisecond precision. In the case of a failed SN, we find that detectors such as SK and JUNO can reach precisions of $\sim 0.1$ms while HK could potentially reach a resolution of $\sim 0.01$ms so that the impact of the black hole formation process itself becomes relevant. Two possible applications for this are the triangulation of a (failed) SN as well as the possibility to constrain neutrino masses via a time-of-flight measurement using a potential gravitational wave signal as reference.

Comments: 22 pages, 9 figures, 8 tables