Mass accretion rate vs. stellar mass (left) and accretion luminosity vs. stellar luminosity (right). Our data are indicated with circles, and triangles for the upper limits on the accretion rates. Crosses are data from the literature (those with vertical bars are upper limits), including low-mass stars from different star-forming regions (see Natta et al. 2006, and references therein). Dotted lines indicate  dex (left) and L_acc/L_∗ = 0.01, 0.1, 1 (right). The dashed line on the right side is the best fit for low-mass stars (L_acc  ∝  ), and the solid lines are the best fits for our sample ( and L_acc  ∝  ).