An IRAS 60 μm image (Wheelock et al. 1994), which clearly shows the dust ring located at ~10 kpc, over-plotted with the location of SNRs (red dots) and candidates (green dots) from the XMM LP-total catalogue. The coincidence between the SNRs and candidates and the structures of the image is visible. In addition the locations of star forming regions, which were obtained from GALEX data (Kang et al. 2009), are indicated by blue dots. Furthermore the two ellipses (green) at 3 and 10 kpc from the centre correspond to the enhancemnets of sources from Fig. 24.
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