L_acc  (top panel) and Ṁ_acc  (bottom) as a function of the stellar mass M_∗. Red circles and blue squares refer to Cha I and Cha II objects, respectively. Upper limits on Ṁ_acc  are marked by triangles of the same colours. The only Class I object (Cha II-3) is indicated by a cross. Diamonds identify the objects with a highly uncertain mass estimate (Cha II-1 and Cha II-3, see text for details). The dashed red line in the bottom panel shows the best-fit relation Ṁ_acc  ∝  obtained for Cha I objects.