Integrated intensity maps (moment-0) of the SWAN dataset (combined NOEMA and IRAM 30m observations) for all detected lines at a common resolution of 3″ (125 pc). The data is binned with hexagonal spacing with the PyStructure code (den Brok et al. 2022; Neumann et al. 2023). Spectral windows for the creation of the moment maps are selected based on significant detections of ¹²CO emission from PAWS (Schinnerer et al. 2013) and HCN(1-0) emission. We show the beam size, a 1 kpc scale bar and mark the central 1 kpc circular area (green points) in the top left panel. The intensity scale is the same as in Fig. C.1.