Molecular line-width maps overlaid with the 2 mm, 3 mm continuum map and NH₃(1, 1) integrated intensity map. The contour level parameters are the same as the ones in Figs. 3 and 5. The dashed arrows in the top panels point to the PV-cuts used for PV diagrams in Fig. 13. The star indicates the UCHii region. The cross in the top right panel marks the reference position in CH₃OH PV diagram in Fig. 13. The circles show where the average spectra are extracted and shown in Fig. 14. The synthesized beam of the line-width maps is shown in the bottom left corner of each panel, and the one of the contours is shown in the bottom right corner of respect panel.