The highest energy HAWC sources are likely leptonic and powered by pulsars
The highest energy HAWC sources are likely leptonic and powered by pulsars
The HAWC Collaboration has observed gamma rays at energies above 56 TeV from a collection of nine sources. It has been suggested that this emission could be hadronic in nature, requiring that these systems accelerate cosmic-ray protons or nuclei up to PeV-scale energies. In this paper, we instead show that …