Table 3
Timescales and accretion rates
| Source | 4tff |
|
|
|
| (105 yr) | (10-5 M⊙ yr-1) | |||
|
|
||||
| N3 MM1 | 0.19 | 67 | 4.1 | 5.2 |
| N3 MM2 | 0.18 | 77 | 4.6 | 2.9 |
| N12 MM1 | 0.16 | 113 | 5.9 | 1.4 |
| N12 MM2 | 0.16 | 101 | 5.5 | 0.48 |
| N48 MM1 | 0.16 | 106 | 5.7 | 5.4 |
| N48 MM2 | 0.23 | 35 | 2.7 | 1.8 |
| N53 MM1 | 0.11 | 302 | 11.4 | 16.5 |
| N53 MM2 | 0.14 | 150 | 7.1 | <4.8 |
| N63 MM1 | 0.09 | 445 | 14.8 | 11.6 |
| VLA1623 | 0.79a | 0.88 | 0.23 | 0.56 |
Notes.
We stress that this 4tff is not the measured collapse timescale, but the one estimated under the assumption that all cores started their collapse from identical initial volumes (in this case 4000 AU FHWM). In reality, VLA1623 is currently twice more compact than the size we used for this estimate, which could be a consequence of the collapse of VLA1623, with its envelope getting more compact with time.
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