Table 2
Global molecular cloud parameters from Herschel column density and temperature maps, ordered by cloud type and name.
| Cloud | LOS Dust (mag) (1) | 〈N(H2)〉 (1021 cm−2) (2) | A AV > 1 (pc2) (3) | R (pc) (4) | 〈n〉 AV > 1 (cm−3) (5) | M AV > 1 (103 M⊙) (6) |
|---|---|---|---|---|---|---|
| High-mass SF regions | ||||||
| Cygnus North | 5.0 | 5.06 | 3417 | 33.0 | 24.9 | 324.46 |
| Cygnus South | 5.0 | 5.47 | 3731 | 34.5 | 25.7 | 383.45 |
| M16 | 7.8 | 4.18 | 1057 | 18.3 | 36.9 | 87.12 |
| M17 | 6.6 | 9.99 | 2478 | 28.1 | 57.7 | 483.76 |
| NGC 6334 | 8.7 | 13.98 | 882 | 16.8 | 135.1 | 238.60 |
| NGC 6357 | 4.2 | 7.22 | 1004 | 17.9 | 65.4 | 145.14 |
| NGC 7538 | 3.3 | 4.22 | 1524 | 22.0 | 31.0 | 130.39 |
| Rosette | 1.1 | 4.10 | 881 | 16.8 | 39.7 | 70.64 |
| Vela C | 2.0 | 6.85 | 450 | 12.0 | 92.7 | 58.00 |
| Intermediate-mass SF regions | ||||||
| Aquila | 2.5 | 2.74 | 445 | 11.9 | 37.3 | 25.94 |
| Mon R2 | 1.6 | 2.00 | 82 | 5.1 | 63.3 | 4.60 |
| Mon OB1 | 2.2 | 2.31 | 59 | 4.4 | 86.1 | 4.87 |
| NGC 2264 | 1.6 | 2.60 | 169 | 7.3 | 57.5 | 11.12 |
| Orion B | 0.9 | 2.06 | 683 | 14.8 | 22.7 | 29.69 |
| Serpens | 1.6 | 1.46 | 266 | 10.8 | 21.9 | 14.15 |
| Low-mass SF regions | ||||||
| Cham I | 0.25 | 1.07 | 18 | 2.4 | 72.5 | 0.767 |
| Cham II | 0.23 | 1.00 | 12 | 2.0 | 82.2 | 0.507 |
| IC5146 | 0.37 | 1.07 | 121 | 6.2 | 28.0 | 5.03 |
| Lupus I | 0.17 | 0.82 | 6.6 | 1.4 | 91.7 | 0.364 |
| Lupus III | 0.44 | 1.16 | 5.0 | 1.3 | 148.9 | 0.180 |
| Lupus VI | 0.46 | 1.00 | 7.3 | 1.5 | 106.0 | 0.398 |
| Perseus | 0.66 | 1.62 | 174 | 7.4 | 35.3 | 4.350 |
| Pipe | 0.59 | 1.72 | 40 | 3.6 | 77.8 | 1.452 |
| ρOph | 1.25 | 1.57 | 26 | 2.9 | 89.0 | 1.244 |
| Taurus | 0.4 | 1.73 | 97 | 5.5 | 50.7 | 4.03 |
| Quiescent regions | ||||||
| Cham III | 0.16 | 0.81 | 9.4 | 1.7 | 75.4 | 0.317 |
| Musca | 0.37 | 0.75 | 3.2 | 1.0 | 121.2 | 0.110 |
| Polaris | 0.31 | 1.73 | 11.3 | 1.9 | 31.9 | 1.208 |
| Diffuse/atomic regions | ||||||
| Draco(a) | 0.60 | 1500 | 21.9 | 4.4 | 8.04 | |
Notes. (1) Line-of-sight contamination in visual extinction determined from polygons in the Herschel dust column density map. (2) Average H2 column density of the cloud above a visual extinction of AV > 1. (3) Cloud area in square-parsec above a visual extinction of AV > 1. (4) Equivalent radius R in parsec from area with R = (area/π)0.5. (5) Average density n in cm−3 above a visual extinction of AV > 1. The density is calculated by n(H2) = N(H2)/(2 R) with the equivalent radius R of the cloud. (6) Mass (M ∝ N(H2) πR2 with N(H2) = 0.94 × 1021 AV cm−2 mag−1) of the complex determined above AV = 1. (a)Values for area, mass, density, etc. are given for a visual extinction of AV > 0.
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