Left panel: velocity shear, v_shear, versus the mean velocity dispersion, σ_mean, for the narrow (systemic) component. Blue, green, and red dots distinguish, respectively, morphological classes 0 (isolated disks), 1 (interacting), and 2 (mergers). The distribution of σ_mean values is also shown, with the contribution of the different morphological classes. The 1:1 dot line is shown as reference to highlight the fact that most of the sources have v_shear > σ_mean. Right panel: velocity shift, Δv, between the broad and narrow components versus the mean velocity dispersion of the broad component, . The horizontal dot line indicates the zero velocity shift. Most of the objects have a blueshifted broad component.