Supernova Neutrino Neutrino Astronomy

TL;DR

This paper assesses the potential of neutrino detection and triangulation methods to accurately locate a supernova in our galaxy, considering different core-collapse outcomes and detector configurations.

Contribution

It provides a detailed analysis of neutrino triangulation accuracy for supernova localization, incorporating current and future detector capabilities and different collapse scenarios.

Findings

Neutrino triangulation can localize supernovae within a few degrees.

Black hole formation scenarios allow for sub-degree localization precision.

Neutron star formation scenarios achieve about 1.5 to 3.5 degrees accuracy.

Abstract

Modern neutrino facilities will be able to detect a large number of neutrinos from the next Galactic supernova. We investigate the viability of the triangulation method to locate a core-collapse supernova by employing the neutrino arrival time differences at various detectors. We perform detailed numerical fits in order to determine the uncertainties of these time differences for the cases when the core collapses into a neutron star or a black hole. We provide a global picture by combining all the relevant current and future neutrino detectors. Our findings indicate that in the scenario of a neutron star formation, supernova can be located with precision of 1.5 and 3.5 degrees in declination and right ascension, respectively. For the black hole scenario, sub-degree precision can be reached.