High-energy neutrinos from Galactic sources

TL;DR

This paper discusses the potential of high-energy neutrino observations to identify Galactic cosmic ray sources, highlighting recent gamma-ray discoveries and the importance of neutrinos as definitive evidence for hadronic acceleration sites.

Contribution

It emphasizes the role of high-energy neutrino detection in confirming the origins of cosmic rays from Galactic sources.

Findings

Gamma-ray sources indicate particle acceleration up to 100 TeV.

Neutrino detection could unambiguously identify cosmic ray sources.

Current observations have not yet confirmed hadronic acceleration sites.

Abstract

Even 100 years after the discovery of cosmic rays their origin remains a mystery. In recent years, TeV gamma-ray detectors have discovered and investigated many Galactic sources where particles are accelerated up to energies of 100 TeV. However, it has not been possible up to now to identify these sites unambiguously as sources of hadronic acceleration. The observation of cosmic high-energy neutrinos from these or other sources will be a smoking-gun evidence for the sites of the acceleration of cosmic rays.