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Table 4
Fractions of planetesimals left in a debris disk after undergoing close stellar encounters for 100 Myr in expanding open clusters of various initial star densities.
| Central star | Cluster(∗) | Fraction of planetesimals left | |
| mc (M⊙) | n0 (pc-3) | ||
| Disk 40−100 AU | Disk 10−40 AU | ||
| (%) | (%) | ||
|
|
|||
| 0.25 | 100 | 100 | 100 |
| 0.5 | ′′ | 100 | 100 |
| 1.0 | ′′ | 100 | 100 |
| 2.5 | ′′ | 100 | 100 |
| 0.25 | 1000 | 100 | 100 |
| 0.5 | ′′ | 100 | 100 |
| 1.0 | ′′ | 100 | 100 |
| 2.5 | ′′ | 100 | 100 |
| 0.25 | 3000 | <65 | 100 |
| 0.5 | ′′ | <83 | 100 |
| 1.0 | ′′ | <95 | 100 |
| 2.5 | ′′ | 100 | 100 |
| 0.25 | 10 000 | <23 | 100 |
| 0.5 | ′′ | <49 | 100 |
| 1.0 | ′′ | <75 | 100 |
| 2.5 | ′′ | <94 | 100 |
| 0.25 | 20 000 | <3 | <97 |
| 0.5 | ′′ | <15 | 100 |
| 1.0 | ′′ | <37 | 100 |
| 2.5 | ′′ | <58 | 100 |
| 0.25 | 30 000 | <1 | <76 |
| 0.5 | ′′ | <3 | <95 |
| 1.0 | ′′ | <16 | 100 |
| 2.5 | ′′ | <40 | 100 |
Notes. (∗)σ = 5 km s-1, φ(d < denc) = 6.
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