Velocity shift, Δv, between the broad and narrow components vs. the mean velocity dispersion of the broad component, . The horizontal dashed line indicates the zero-velocity shift. Most of the objects show a blueshifted (negative values) broad component, most of them clustered around Δv = 0 to −500 km s⁻¹. The dashed red region represents the typical values covered by a local sample of (U)LIRGs studied by B13. The color code is the same as in Fig. 9.