Right panel: distribution of FWHM and centroid velocity of all components from all profiles derived from the Gaussian fits. Dotted lines indicate the separation between different components – narrow and broad LVC, red and blueshifted HVC, according to our analysis (though there is some overlap between the NLVC and BLVC). The dashed-dotted line represents our instrumental profile, below which no components are found. Blue diamonds represent high-velocity components whose peaks are resolved, and not blended with the low-velocity emission. Left panel: surface plot of the central region of the distribution shown in the right panel, where the z axis represents the number of Gaussian components in square bins of 5 km s⁻¹ × 5 km s⁻¹. The primary peak corresponds to the locus of the narrow LVC, while the secondary peak represents a concentration of broad LVCs.