Unveiling the nature of galactic TeV sources with IceCube results

Abstract

IceCube collaboration reported the first high-significance observation of the neutrino emission from the Galactic disk. The observed signal can be due to diffuse emission produced by cosmic rays interacting with interstellar gas but can also arise from a population of sources. In this paper, we evaluate both the diffuse and source contribution by taking advantage of gamma-ray observations and/or theoretical considerations. By comparing our expectations with IceCube measurement, we constrain the fraction of Galactic TeV gamma-ray sources (resolved and unresolved) with hadronic nature. In order to be compatible with the IceCube results, this fraction should be less than $\sim 40\%$ corresponding to a cumulative source flux ${\Phi }_{\nu ,\mathrm{s}}\le 2.6\times 10^{-10}c{m}^{-2}{s}^{-1}$ integrated in the 1-100 TeV energy range.

arXiv admin note: text overlap with arXiv:2306.16305

References in corpus (5)

• The Parkes multibeam pulsar survey: VI. Discovery and timing of 142 pulsars and a Galactic population analysis
• Observation of high-energy neutrinos from the Galactic plane
• Constraints on Galactic Neutrino Emission with Seven Years of IceCube Data
• Which is the flavor of cosmic neutrinos seen by IceCube?
• Setting an upper limit for the total TeV neutrino flux from the disk of our Galaxy

Cited by in corpus (3)

• Galactic Diffuse Neutrino Emission from Sources beyond the Discovery Horizon
• Estimatingthe Contribution of Galactic Neutrino Sources
• Search for Diffuse Galactic Neutrinos with the Full ANTARES Telescope Dataset