Highlight
Free Access

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.

(a)

Average surface density, i.e. mass-to-area ratio.

(b)

Mass, area, and surface-density ratios between the regions with AV > 6 mag

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.