Table 4
Survival probabilities in the different scenarios.
| Type | q = –2.5 | q = -3 | q = –3.5 |
|
|
|||
| Catastrophic (3 km) | 2.00E-02 | 1.07E-03 | 7.85E-05 |
| Including cn | 1.52E-03 | 5.03E-05 | 2.25E-06 |
|
|
|||
| Sub-catastrophic (0.7) | 1.01E-01 | 2.87E-02 | 9.30E-03 |
| Sub-catastrophic (0.4) | 2.35E-01 | 1.18E-01 | 5.85E-02 |
|
|
|||
| Primordial formation: | |||
| Tdisc = 400 Myr | <1e-28 | <1e-90 | <1e-228 |
| Tdisc = 0 Myr | 4.69E-02 | 1.42E-08 | 2.42E-49 |
Notes. Computed is the bi-lobe shape survival probability, Psurvival, against any subsequent shape-changing collision. These survival probabilities are computed for three different scenarios a) a catastrophic disruption of a target with Rt = 3 km; b) a sub-catastrophic impact (for two target axis ratios 0.7 and 0.4); and c) a primordial formation. See text for details. For the catastrophic disruption, the probability computation in the second row takes into account the reduced abundance of Rt = 3 km bodies with respect to 67P sized bodies with Rt ~ 1.8 km (a factor of cn = 0.29 for q = −2.5, cn = 0.22 for q = −3 and cn = 0.17 for q = −3.5, respectively).
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