$\log (<L_{\mathrm{a}\mathrm{c}\mathrm{c}}^{lines}>)$ vs. log $L_{\text{acc\hspace{0.17em}}}^{\text{modeling}}$. Colors of the points represent different star-forming regions as described in the legend. The blue line corresponds to our best fit. The dashed black line shows the linear trend as a reference. Left: log < L_acc >^lines is computed as the average from the L_acc’s from many lines and using empirical relations by Alcalá et al. (2017) and log $L_{\text{acc\hspace{0.17em}}}^{XS}$ is obtained using the XS-fit method. Right: log < L_acc >^lines is computed as the average from the L_acc’s from many lines and using empirical relations obtained in this work and log $L_{\text{acc\hspace{0.17em}}}^{HST}$ is obtained using the HST-fit method.