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Fig. 9

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MD* correlation with ϕ = 1, ω = 0.8, and t = 3.5 Myr. The dots are Monte Carlo simulations of 105 proto-planetary disks evolving following Eqs. (4) and (5), where M0 follows Eq. (9) and tacc,0 follows a lognormal distribution centered on the natural logarithm of 5 Myr with a spread of 0.13 dex. In addition, M0 is then generated following a lognormal distribution with the values of tacc,0 following Eq. (9) with a spread of 0.43 dex. The black line represents Eq. (D.2), the gray line is the best-fitting power law for the population, resulting in M˙*MD0.83${{\dot M}_*} \propto M_D^{0.83}$, while the red line shows Eq. (B.2). For illustrative purposes, we also plot in blue the best-fitting power law for a population for which σM0=0.26${\sigma _{{M_0}}} = 0.26$ dex, which results in M˙*MD0.65${{\dot M}_*} \propto M_D^{0.65}$.

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