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Table 2:

Properties of the high extinction clouds.

HEC name
  Radiusa $\langle A_{\rm V} \rangle _{\rm ext}$ $\langle N_{\rm H_2} \rangle _{\rm ext}$ Fi $M_{\rm ext}$ $M_{\rm 1.2~mm}$ Clump/Cloudb Class
    ( $^{\prime \prime }$/pc) (mag) (1022 cm-2) (Jy) ($M_\odot$) ($M_\odot$) (mJy beam-1 /mJy)  
G012.73-00.58...   109/0.26 32 3.0 1.89 119 109 63/52 diffuse
G013.28-00.34...   59/1.15 42 3.9 3.85 3039 1693 129/66 diffuse
G013.91-00.51...   49/0.65 44 4.2 2.84 1015 602 203/66 peaked
G013.97-00.45...   52/0.6 22 2.1 2.29 457 308 99/56 diffuse
G014.39-00.75... A 62/0.66 34 3.2 4.88 507 796 64/195 peaked
  B 25/0.31 16 1.5 0.69 86 165 103/66 diffuse
G014.63-00.57...   98/1.04 35 3.3 17.47 2084 1822 907/96 multiply p.
G016.93+00.24...   52/0.61 32 3.0 2.20 632 294 118/56 peaked
G017.19+00.81...   71/0.79 34 3.2 6.78 1258 785 547/63 multiply p.
G018.26-00.24...   85/1.93 32 3.0 11.27 6540 5.896 317/92 multiply p.
G022.06+00.21...   45/0.81 28 2.6 4.05 1000 1018 1151/72 multiply p.
G023.38-00.12...   68/1.84 29 2.8 5.16 5498 3470 211/67 peaked
G024.37-00.15...   43/0.81 26 2.5 0.56 921 561 168/52 multiply p.
G024.61-00.33...   40/0.61 25 2.4 1.78 496 424 214/69 multiply p.
G024.94-00.15...   49/0.79 32 3.0 2.17 1095 650 160/62 peaked
G025.79+00.81...   38/0.63 24 2.3 1.05 494 351 -/46 diffuse
G030.90+00.00 ... A 36/0.80 24 2.2 1.45 826 619 188/61 peaked
  B 39/1.35 20 1.8 1.57 1960 2232 157/57 peaked
  C 30/0.83 21 2.0 0.83 799 636 129/71 diffuse
  D 14/0.17 22 2.1 0.17 37 31 115/68 diffuse
G034.03-00.33...   6/- 21 1.9 0.02 - - -/60 diffuse
G034.34-00.90...   -/- - - - - - -/- diffuse
G034.71-00.63...   51/0.74 31 3.0 3.05 968 642 206/54 multiply p.
G034.77-00.81...   9/0.13 32 3.0 0.05 30 12 -/- diffuse
G034.85+00.43...   16/0.29 37 3.5 0.17 171 73 -/43 diffuse
G035.49-00.30... A 19/0.34 11 1.1 0.39 73 103 198/58 peaked
  B 63/0.91 33 3.1 4.1 1495 1300 118/56 peaked
G037.44+00.14... A 26/0.16 33 3.1 0.58 47 37 -/67 diffuse
  B 9/0.11 25 2.4 0.05 17 9 -/54 diffuse
G050.06+00.06...   51/1.18 29 2.8 2.92 2257 2227 140/54 peaked
G053.81-00.00...   40/0.37 31 2.9 1.54 236 192 140/56 peaked

Notes. The first two columns give the HEC name and the subgrouping of clouds based on the kinematic distance, the following columns represent (in order of appearance): radius of the cloud, average visual extinction derived from the extinction maps, average hydrogen column density derived from the extinction maps, integrated 1.2 mm flux, cloud mass derived from the extinction maps, cloud mass derived from the 1.2 mm, clump peak flux and median cloud flux, class of HEC.
(a) Radius is the square root of the area divided by $\pi$. For the conversion to parsecs we use the kinematic distance based on the ${\rm NH_3}$(1, 1) line.
(b) Peak of the 1.2 mm emission in the clump and the mean 1.2 mm emission of the cloud without the clumps.


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