Blue asymmetry of the [OIII] (top panel), Hα (middle panel), and stellar (bottom panel) LoSVDs, as measured by the difference between the (moduli of the) 2.3th and 97.7th percentile velocities (i.e. y = | v_2.3 | − | v_97.7 |). For display purposes, only the less noisy bins are plotted, i.e. bins with either σ_y< 50 km s^-1 or | y | ≥ 2σ_y. The Spearman rank correlation coefficient (0 <ρ< 1, higher values of ρ indicate stronger correlation) is reported for each plot, along with the corresponding two-sided p value (if the p-value is ≤α, where α = 0.05 is the level of significance, the observed correlation is statistically significant).