Fig. 1
γ-ray excess map of the W49 region obtained with H.E.S.S. The map is smoothed with a Gaussian of width 0.06°, corresponding to the 68% radius containment of the H.E.S.S. point spread function (PSF; shown in the inset). The black triangle denotes the position of the supernova remnant W49B (Green 2014). The white triangle denotes the position of W49A (Lockman 1989).
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