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Table 4
Properties of the 
masks sorted by increasing range of visual extinction.
| Parameter | Unit |
|
|
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|
|
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|||||
|
K km s-1 | 0−6.8−46.9 | 1.3−62.6−211 | 24.8−122−261 | 41.5−137−288 |
|
mag | 1−1.4−2 | 2−3.6−6 | 6−8.5−15 | 15−28.9−222 |
|
K | 19−24−45 | 19−26−67 | 18−29−99 | 16−26−95 |
|
ISRF (Habing 1968) | 8.9−30−680 | 8.4−46−5100 | 6−72−36 000 | 4−47−28 000 |
| CO-traced mass | M⊙ | 320 (3%) | 5600 (51%) | 4400 (40%) | 830 (8%) |
| Dust-traced mass | M⊙ | 300 (8%) | 1500 (38%) | 1400 (36%) | 790 (20%) |
| Emitting surface | pc2 | 11 (25%) | 21 (48%) | 8.4 (20%) | 1.4 (3.3%) |
| Typical volume | pc3 | 36 (13%) | 93 (33%) | 24 (8.6%) | 1.7 (0.6%) |
| CO-traced mean column density | M⊙ pc-2 | 1021 H2 cm-2 | 30 | 1.4 | 270 | 12 | 530 | 24 | 590 | 27 |
| Dust-traced mean column density | M⊙ pc-2 | 1021 H2 cm-2 | 28 | 1.3 | 71 | 3.3 | 160 | 7.6 | 560 | 26 |
| CO-traced mean volume density | M⊙ pc-3 | H2 cm-3 | 8.9 | 130 | 60 | 890 | 180 | 2700 | 500 | 7500 |
| Dust-traced mean volume density | M⊙ pc-3 | H2 cm-3 | 8.4 | 130 | 16 | 230 | 57 | 850 | 470 | 7100 |
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