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A connection between star formation activity and cosmic rays in the starburst galaxy M 82
(2009)
Although Galactic cosmic rays (protons and nuclei) are widely believed to be dominantly accelerated by the winds and supernovae of massive stars, definitive evidence of this origin remains elusive nearly a century after ...
Evidence for long-term Gamma-ray and X-ray variability from the unidentified TeV source HESS J0632+057
(2009)
HESS J0632+057 is one of only two unidentified very-high-energy gamma-ray sources which appear to be point-like within experimental resolution. It is possibly associated with the massive Be star MWC 148 and has been suggested ...