Left panel: difference between moment-1 maps for CO (ALMA 12 m + 7 m + TP) and H I at matched 6.3″ resolution. Middle panel: CO velocity field at 0.64″≈45 pc resolution measured as the moment-1 map from ALMA (12 m + 7 m + TP), using a 4σ dilated mask. The blue arrows are the slits used for the position-velocity diagrams from Fig. 7. Right panel: CO velocity dispersion measured as the moment-2 map from ALMA (12 m + 7 m + TP), using the same 4σ dilated mask.