Relation between the slopes of log Σ_SFR (left panel) and the one-component fit σ (right) versus residual velocities and the SFR_10 Myr/SFR_100 Myr ratio obtained with the SED fit. The slopes are obtained through the fits shown for each individual galaxy in Appendix A. Pearson coefficients are given in the top-right corners; they show no correlation in the first relation and only weak anticorrelation with little significance in the second. The cyan line shows the SFR_10 Myr/SFR_100 Myr = 1 ratio.