Table 2
Simulation results for different models.
| Model description | # Planets | ∑ Mpl (M⊕) | MSI (M⊕) |  |
 |
|
|---|---|---|---|---|---|---|
| 1. | Fiducial (see Table 1) | 11.0 ± 1.1 | 9.3 ± 0.08 | 1.4 ± 0.02 | 1.74 ± 0.89 | 0.10 ± 0.05 |
| 2. | With a pebble isolation mass of 1 M⊕ | 11.0 ± 1.1 | 5.5 ± 0.56 | 1.4 ± 0.02 | 0.84 ± 0.29 | 0.19 ± 0.08 |
| 3. | Larger initial pltsml size (1500 km) | 10.8 ± 1.7 | 9.3 ± 0.2 | 1.4 ± 0.04 | 1.84 ± 0.92 | 0.10 ± 0.05 |
| 4. | Smaller initial pltsml size (1000 km) | 11.0 ± 0.6 | 9.4 ± 0.08 | 1.4 ± 0.03 | 1.74 ± 0.73 | 0.10 ± 0.05 |
| 5. | α = 5 × 10−4 | 45.8 ± 2.5 | 14.8 ± 0.06 | 5.9 ± 0.01 | 0.67 ± 0.28 | 0.39 ± 0.09 |
| 6. | α = 2 × 10−3 | 10.8 ± 1.2 | 8.7 ± 0.17 | 1.5 ± 0.01 | 1.43 ± 0.71 | 0.14 ± 0.05 |
| 7. | Ṁgas = 5 × 10−11 M⊙ yr−1 | 20.3 ± 3.1 | 10.8 ± 0.46 | 3.0 ± 0.01 | 1.06 ± 0.50 | 0.16 ± 0.09 |
| 8. | Ṁgas = 2 × 10−10 M⊙ yr−1 | 14.6 ± 1.2 | 7.1 ± 0.1 | 1.4 ± 0.04 | 1.57 ± 0.93 | 0.13 ± 0.06 |
| 9. | Higher disk mass (rout = 300 au) | 11.6 ± 1.0 | 14.5 ± 0.49 | 1.4 ± 0.03 | 2.56 ± 1.53 | 0.07 ± 0.05 |
| 10. | Lower disk mass (rout = 100 au) | 10.0 ± 0.6 | 4.3 ± 0.04 | 1.3 ± 0.02 | 1.10 ± 0.49 | 0.17 ± 0.05 |
| TRAPPIST-1 | UCM model, Dorn et al. (2018) | 7 |  |
0.95 ± 0.26 | 0.10 ± 0.05 | |
Notes. The columns denote (from left to right): model description; total number of planets; total mass in planets; total mass in planetesimals formed by streaming instability; weighted mean of individual planet mass; mean planet water fraction (weighted with planet mass). Each column entry gives the mean and standard deviation of the corresponding quantity, calculated from multiple realisations. The model descriptions are elaborated on in the text.
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