Velocity dispersion distributions for the CS (blue), the NBCS (black) and the DPS (red, purple and orange). The left panel displays the stellar velocity dispersion σ_* computed from Chilingarian et al. (2017). The second panel shows the gas velocity dispersion σ_gas. We compute the Gaussian emission line dispersion for the CS and the NBCS from (Chilingarian et al. 2017). For the DPS, we display the σ_1, 2 of the emission line components, which is closer to the galaxy stellar velocity in units of σ_1, 2 in magenta and the component which is more offset in cyan. For better comparisons, we unify the surface of the histograms of the left (resp. right) panel to 150 (resp. 100).