Table 2
Simulation statistics.
| Scenario | (Σd/Σg)init [%] (a) | Dust size(b) | Base, maximum resolution [au−1] | Strong clumping | 〈(ρd/ρg)max〉 (c) [g cm−3] | 〈Δfd(ρd ≥ ρR)/Δt)(d) [kyr−1] |
|---|---|---|---|---|---|---|
| SI only | 0.5 | St = 0.1 | 10, 320 | × | 10 ± 2 | – |
| SI only | 0.5 | a = 3 cm | 10, 320 | × | 20 ± 5 | – |
| SI only | 1 | St = 0.1 | 10, 320 | × | 20 ± 3 | – |
| SI only | 1 | St = 0.1 | 20, 640 | × | 34±5 | – |
| SI only | 1 | a = 3 cm | 10, 320 | ✓ | 119 ± 59 | 0.057 ± 0.046 |
| SI only | 2 | a = 3 mm | 10, 320 | × | 25 ± 3 | – |
| SI only | 2 | St = 0.1 | 10, 320 | ✓ | 78 ± 52 | 0.085 ± 0.041 |
| SI only | 2 | a = 3 cm | 10, 320 | ✓ | 126 ± 53 | 0.264 ± 0.093 |
| SIwhileVSI | 0.5 | St = 0.1 | 10, 320 | × | 13±3 | – |
| SIwhileVSI | 0.5 | a = 3 cm | 10, 320 | × | 23 ± 6 | – |
| SIwhileVSI | 1 | St = 0.1 | 10, 320 | ✓ | 119 ± 76 | 0.107 ± 0.107 |
| SIwhileVSI | 1 | a = 3 cm | 10, 320 | ✓ | 286 ± 169 | 0.174 ± 0.090 |
| SIwhileVSI | 2 | a = 3 mm | 10, 320 | × | 30±4 | – |
| SIwhileVSI | 2 | St = 0.1 | 10, 320 | ✓ | 130 ± 66 | 0.118 ± 0.046 |
| SIwhileVSI | 2 | a = 3 cm | 10, 320 | ✓ | 1089 ± 861 | 0.084 ± 0.042 |
| SIafterVSI | 0.5 | St = 0.01 | 10, 320 | × | 0.6 ± 0.2 | – |
| SIafterVSI | 0.5 | a = 3 mm | 10, 320 | × | 18±4 | – |
| SIafterVSI | 0.5 | St = 0.1 | 10, 320 | ✓ | 74 ± 77 | 0.080 ± 0.103 |
| SIafterVSI | 0.5 | a = 3 cm | 10, 320 | ✓ | 346 ± 286 | 0.101 ± 0.103 |
| SIafterVSI | 1 | St = 0.01 | 10, 320 | × | 2.1 ± 0.6 | – |
| SIafterVSI | 1 | a = 3 mm | 10, 320 | ✓ | 49 ± 18 | 0.001 ± 0.006 |
| SIafterVSI | 1 | a = 3 mm | 20, 640 | ✓ | 351 ± 322 | 0.053 ± 0.044 |
| SIafterVSI | 1 | St = 0.1 | 10, 320 | ✓ | 155 ± 80 | 0.039 ± 0.052 |
| SIafterVSI | 1 | a = 3 cm | 10, 320 | ✓ | 480 ± 242 | 0.122 ± 0.095 |
| SIafterVSI | 2 | St = 0.01 | 10, 320 | × | 15±10 | – |
| SIafterVSI | 2 | a = 3 mm | 10, 320 | ✓ | 103 ± 58 | 0.016 ± 0.016 |
| SIafterVSI | 2 | St = 0.1 | 10, 320 | ✓ | 335 ± 326 | 0.095 ± 0.077 |
| SIafterVSI | 2 | a = 3 cm | 10, 320 | ✓ | 2005 ± 1452 | 0.009 ± 0.010 |
Notes. (a)Initial dust-to-gas surface density ratio.(b)Given either as a size a or as a Stokes number St. (c)Maximum dust-to-gas volume density ratio, averaged either over strong-clumping phase or, if strong clumping does not occur, over quasi-steady phase. (d)Planetesimal formation rate (fraction of dust particles that becomes associated with a Roche-unstable overdensity) per unit time, averaged over strong-clumping phase.
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