Observation of high-energy neutrinos from the Galactic plane.
Journal
Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511
Informations de publication
Date de publication:
30 Jun 2023
30 Jun 2023
Historique:
medline:
3
7
2023
pubmed:
29
6
2023
entrez:
29
6
2023
Statut:
ppublish
Résumé
The origin of high-energy cosmic rays, atomic nuclei that continuously impact Earth's atmosphere, is unknown. Because of deflection by interstellar magnetic fields, cosmic rays produced within the Milky Way arrive at Earth from random directions. However, cosmic rays interact with matter near their sources and during propagation, which produces high-energy neutrinos. We searched for neutrino emission using machine learning techniques applied to 10 years of data from the IceCube Neutrino Observatory. By comparing diffuse emission models to a background-only hypothesis, we identified neutrino emission from the Galactic plane at the 4.5σ level of significance. The signal is consistent with diffuse emission of neutrinos from the Milky Way but could also arise from a population of unresolved point sources.
Identifiants
pubmed: 37384687
doi: 10.1126/science.adc9818
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM