Fig. 4
Ratio of gas outer radius over characteristic radius vs. disk age. The black dashed line shows where RCO, 90% = Rc. Top, middle,and bottom panels: models with various stellar masses (cf. Table 1). The colors correspond to the αvisc of the model. The red crosses denote where RCO, 90%∕Rc = 2.3, that is, where RCO, 90% encloses 90% of the total disk mass (see Sect. 3.4).
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