Slit-like spectrograms extracted from the SW mosaic data along the lines displayed in Fig. 9. The virtual slit has a width of 0.3 arcsec. Position-velocity images around each of the three spectral lines studied in this paper are displayed. The spectral axis is expressed as υ_LSR for each line. Overplotted is the H II radial velocity derived with CubeFit at the same location, and the curve is the same in each subpanel.