Maps of kinematic parameters. Top panels: centroid velocity maps of ¹³CO (3–2) and C¹⁸O (3–2) obtained from the Gaussian fitting procedure described in Sect. 3. Bottom panels: velocity dispersion maps of ¹³CO and C¹⁸O. Contours show the column density of H₂ with levels [4, 6] ×10²² cm⁻², as derived from Herschel data (Peretto et al. 2012). The black segments represent the polarization angles in the NIR band. The blue crosses in the top-right panel present the locations of spectra in Fig. 3. The green crosses represent the locations where the velocity gradient is estimated. Scale bars are at the top right of each panel.