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Table 3

Quantities of different runs with Gadget2, of which some are plotted in Fig. 5.

Model (M/yr) (M/yr) (M/yr) (M/yr) τ (yr)

G4 (− 4.6 ± 0.1) × 10-7 (− 3.20 ± 0.1) × 10-7 (0.79 ± 0.06) × 10-7 (− 2.2 ± 0.2) × 10-7 (1.7 ± 0.1) × 103
G8 (− 2.76 ± 0.07) × 10-7 (− 1.93 ± 0.03) × 10-7 (0.94 ± 0.04) × 10-7 (− 1.78 ± 0.06) × 10-7 (4.5 ± 0.01) × 103
G16 −1.68 × 10-7 −1.27 × 10-7 1.03 × 10-7 −1.44 × 10-7 8.5 × 103
G32 −0.66 × 10-7 −0.86 × 10-7 1.10 × 10-7 −0.90 × 10-7 24.0 × 103
G64 −0.15 × 10-7 −0.54 × 10-7 1.09 × 10-7 −0.70 × 10-7 114.0 × 103
G128 0.11 × 10-7 −0.38 × 10-7 1.13 × 10-7 −0.64 × 10-7 167.5 × 103

G16NFa −0.81 × 10-7 −0.45 × 10-7 −0.35 × 10-7 48.0 × 103

G16CV −1.10 × 10-7 −2.44 × 10-7 1.35 × 10-7 0 × 10-7 16.1 × 103


Mdisc (M) Rdisc (AU) (kg m2 s-2) (yr)

G4 (7.7 ± 0.6) × 10-4 28.5 ± 0.6 (− 2.86 ± 0.09) × 1032 (2.5 ± 0.1) × 103
G8 (12.33 ± 0.02) × 10-4 24.8 (− 2.13 ± 0.02) × 1032 (4.2 ± 0.1) × 103
G16 14.31 × 10-4 21.0 −1.72 × 1032 5.6 × 103
G32 15.76 × 10-4 20.3 −1.22 × 1032 8.0 × 103
G64 16.76 × 10-4 20.3 −0.98 × 1032 10.3 × 103
G128 17.67 × 10-4 18.8 −0.90 × 1032 11.8 × 103

G16NFa 38.61 × 10-4 98.3 −0.67 × 1032 70.9 × 103

G16CV 17.69 × 10-4 28.75 −1.37 × 1032 9.7 × 103

Notes. Top table from left to right: the model, the rate of mass change of the disc, the accretion rate onto the star, the ISM loading rate onto the disc and star system, the rate at which original disc material is stripped from the outer edge of the disc and the estimate for the timescale on which the disc would lose all its mass. Note that τ is in italic for the G128 simulation, because the disc actually gains mass in this model. Bottom table from left to right: the model, the mass of the disc at the end of the simulation (t = 2500 yr), the radius of the disc at t = 2500 yr, the rate at which the disc loses angular momentum and an estimate for the timescale on which the disc would lose all its angular momentum.

(a)

The stripping rates and timescales derived for this simulation correspond to viscous spreading and not to actual stripping.

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