Table 12
Mass, area, and average surface density of a sample of nearby molecular clouds, measured over the regions with AV > 3 mag, 3 < AV < 6 mag, and AV > 6 mag.
| AV > 3 mag | 3 < AV < 6 mag | AV > 6 mag | |||||||||||
| Cloud | Distance | Mass | Area | Σa | Mass | Area | Σa | Mass | Area | Σa | RMb | RAb | RΣb |
| (pc) | (M⊙) | (deg2) | (M⊙ pc-2) | (M⊙) | (deg2) | (M⊙ pc-2) | (M⊙) | (deg2) | (M⊙ pc-2) | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
|
|
|||||||||||||
| Chamaeleon I | 150 | 720 | 1.2 | 88 | 500 | 0.9 | 81 | 220 | 0.30 | 109 | 0.45 | 0.33 | 1.4 |
| Ophiuchus | 125 | 3340 | 10.1 | 69 | 2350 | 8.3 | 60 | 990 | 1.87 | 111 | 0.42 | 0.23 | 1.9 |
| Taurus | 140 | 6120 | 15.1 | 68 | 4320 | 12.5 | 58 | 1800 | 2.59 | 116 | 0.42 | 0.21 | 2.0 |
| Perseus | 250 | 6140 | 4.8 | 68 | 4510 | 3.9 | 61 | 1620 | 0.87 | 98 | 0.36 | 0.22 | 1.6 |
| Serpens | 260 | 7980 | 5.5 | 70 | 6300 | 4.5 | 68 | 1680 | 1.00 | 82 | 0.27 | 0.22 | 1.2 |
| Orion | 450 | 63 320 | 15.0 | 68 | 44 180 | 11.8 | 61 | 19 140 | 3.23 | 96 | 0.43 | 0.27 | 1.6 |
Notes. The masses and areas for all clouds but Chamaeleon I were provided by S. Sadavoy (priv. comm.), based on Sadavoy et al. (2010). The masses for AV > 6 mag, initially calibrated for RV = 3.1, are here recalibrated for RV = 5.5 (see Appendix B.3). The masses for AV > 3 mag are corrected accordingly. The distances are the same as in Sadavoy et al. (2010). and 3 < AV < 6 mag.
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