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Table 1
Typical properties of structures on different size scales related to star formation.
| Structure | ℓ | n | M | Ref. |
|---|---|---|---|---|
| (pc) | (cm−3) | (M⊙) | ||
| GMA(a) | 150 | 10 | 106−107 | 6 |
| GMC(b) | 50 | 100 | 105 | 1,2,4,6 |
| Cloud | 10 | 500 | 104 | 1,2,3,4,6 |
| Clump | 1 | 5000 | 103 | 1,2,3,4,6,8 |
| Filament | 1−10 × | 104 | 1−30 × ℓ | 5,6 |
| 0.05−0.25 | ||||
| Cores | 0.1 | 104−106 | 10−103 | 1,2,3,5 |
| Embedded | 5−500 × 10−5 | 106−109 | 0.1−100 | 7 |
| Discs | (10-1000 AU) |
References. 1: Williams et al. (2000), 2: Stahler & Palla (2005), 3: Rosolowsky et al. (2008), 4: Rathborne et al. (2009), 5: André et al. (2014), 6: Molinari et al. (2014), 7: Beltrán & de Wit (2016),8: Urquhart et al. (2018).
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