Mass accretion rate against the Hα 10% width. Our results are represented by circles, and triangles for the upper limits on the accretion rates. Error bars for the line widths indicate the uncertainties for the non-variable objects and variability amplitudes for the variable ones. Data for lower mass stars are also included (crosses; from the compilation of Natta et al. 2004), as well as the empirical expression relating both parameters in that stellar regime; log Ṁ_acc  ~  –12.9 + 9.7  ×  10^-3W₁₀(Hα) (dotted line; Natta et al. 2004).