Table 7
Median properties for starless candidates MDCs in NGC 6334 and NGC 6357.
| NGC 6334 | NGC 6357 | |
|---|---|---|
| Tigé et al. (2017) | ||
| Number | 16 | 12 |
| Size (pc) | 0.14 | 0.13 |
| ⟨Tdust⟩ (K) | 15 | 17 |
| Lbol (L⊙) | 130 | 431(b) |
| Mass (M⊙) | 103 | 102 |
 (cm−3) |
1.4 × 106 | 1.3 × 106 |
| Free-fall time (a) (yr) | 3 × 104 | 3.2 × 104 |
Notes. (a) Free-fall time (tff) measured from the median values of the density averaged over the full MDC volume, which is approximately a sphere with a FWHM radius: 
and 
. (b) Due to the large uncertainty on Lbol and any possible NIR source fortuitous association this value can reach a lower limit of 319 L⊙ (considering only that Lbol = LFit).
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