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Fig. 6


Mass accretion rates of the whole POISSON sample plotted as a function of the stellar mass (left) and age of the targets (right). Upper limits on acc are indicated by downward triangles. The typical error bar of a single point is also shown. The dashed lines in the right graph show the expected acc evolution for a fiducial model of a viscous disk (Hartmann et al. 1998; see text for more details) around a 0.5 M star with initial disk masses equal to 0.1 M (lower line) and 0.2 M (upper line). Sample symbols are the same as in Fig. 4.

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