Accretion luminosity derived by applying the Alcalá et al. (2017) empirical relationships between L_acc and the luminosity of the indicated H I lines. The value L_acc is derived by iteratively adjusting the A_V value to minimize the spread among the individual L_acc(i) derived by each line i. The error bars in the data points take into account the flux errors of Table 3 along with the uncertainties in the Alcalá et al. relationships. The dashed lines in each panel delimit the statistical error on L_acc. The date of the observation, the Ṁ_acc derived from L_acc applying the Gullbring et al. (1998) formula, and the fitted A_V are reported at the top of each panel.