Molecular and atomic gas at velocities near -32 and -55 km/s shows spatial correspondence with the TeV gamma-ray shell around Westerlund 1, supporting hadronic cosmic-ray production with total proton energy approximately 6 x 10^49 erg.
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Wolf-Rayet star clusters show a marginal spatial correlation with unidentified GeV gamma-ray sources, with 11 new cluster associations and 4 isolated WR stars identified as potential emitters from wind termination shocks.
Numerical transport modeling of the Cygnus Bubble finds that spatially dependent Bohm diffusion and strong suppression of the diffusion coefficient over at least 150 pc are required to match the observed gamma-ray spectrum and morphology, implying extreme assumptions for steady hadronic acceleration
citing papers explorer
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Discovery of Molecular and Atomic Gas associated with HESS J1646-458 (Westerlund 1): Spatial TeV Gamma-Ray and Interstellar Proton Correspondence
Molecular and atomic gas at velocities near -32 and -55 km/s shows spatial correspondence with the TeV gamma-ray shell around Westerlund 1, supporting hadronic cosmic-ray production with total proton energy approximately 6 x 10^49 erg.
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Wolf-Rayet stars as tracers of gamma-ray emission: Isolated stars and stellar clusters/associations
Wolf-Rayet star clusters show a marginal spatial correlation with unidentified GeV gamma-ray sources, with 11 new cluster associations and 4 isolated WR stars identified as potential emitters from wind termination shocks.
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Suppressed diffusion and gamma-ray emission from the Cygnus Bubble
Numerical transport modeling of the Cygnus Bubble finds that spatially dependent Bohm diffusion and strong suppression of the diffusion coefficient over at least 150 pc are required to match the observed gamma-ray spectrum and morphology, implying extreme assumptions for steady hadronic acceleration