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Fig. 3

image

Stellar gas accretion rate and dust disc mass as a function of time, for discs with final centrifugal radii of 8, 16, 32, 64, and 128 au forming from 1 M cloud cores. The red and yellow lines show the tracks of the two cases with the highest and lowest final centrifugal radius, respectively. The formation phase ends at t ≈ 1.8 × 105 yr. During the formation phase a trend can be seen where systems with smaller centrifugal radii have lower dust disc masses and slightly higher gas accretion rates. Between 1.8 × 105 yr and 5.0 × 105 yr the gas accretion rates drop significantly, while dust disc masses decrease only slightly. Discs with a smaller final centrifugal radius experience a larger drop in accretion rate. A lower final centrifugal radius leads to faster evolution of the protoplanetary disc. At 2.5 × 106 yr, only the case with the highest final centrifugal radius remains, but the dust disc mass is only ≈ 10−2 M.

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