Abstract:The presence of cosmic rays in our galaxy can be tracked with neutral messengers, such as photons and neutrinos. Photons are observed at various wavelengths, and gamma-ray observations from GeV to PeV scales have given an important insight on the behaviour of charged particles in the Milky Way. However, both leptonic -photon emission from processes involving electrons -and hadronic -emission coming from proton or nuclei interactions -mechanisms can be used to explain the observed gamma-ray flux in many differe… Show more
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