Observation of Photons above 300 TeV Associated with a High-energy Neutrino from the Cygnus Region
D. D. Dzhappuev et al 2021 ApJL 916 L22
A gamma-ray flare has been found in coincidence with the recent neutrino detection from the Cygnus Cocoon, providing the first evidence for the joint production of high-energy neutrinos and gamma-rays in a galactic source.