Table 2
Statistics of integrated properties for various cloud morphologies.
| Subset | Visually classified sample | Morphologically reliable sample | ||||||
|---|---|---|---|---|---|---|---|---|
| Median | IQR | Skewness | Kurtosis | Median | IQR | Skewness | Kurtosis | |
| M [×103 M⊙] | ||||||||
| All | 1.27 | 3.25 | 52.3 | 3451.1 | 1.17 | 2.83 | 13.2 | 294.6 |
| Ring-like | 2.51 | 7.96 | 14.1 | 283.3 | 1.40 | 5.89 | 2.8 | 8.3 |
| Elongated | 1.09 | 2.67 | 16.6 | 422.3 | 1.09 | 2.65 | 16.9 | 437.0 |
| Concentrated | 1.06 | 2.01 | 32.1 | 1046.9 | 1.05 | 1.93 | 7.2 | 71.4 |
| Clumped | 2.04 | 4.71 | 5.4 | 39.8 | 2.04 | 4.71 | 5.5 | 41.2 |
| Σ [M⊙ pc–2] | ||||||||
| All | 73.42 | 42.40 | 5.0 | 67.1 | 72.15 | 40.29 | 3.7 | 28.1 |
| Ring-like | 71.94 | 52.35 | 2.7 | 10.7 | 59.49 | 34.30 | 2.2 | 4.9 |
| Elongated | 67.04 | 32.09 | 5.1 | 52.6 | 67.22 | 32.03 | 5.1 | 53.6 |
| Concentrated | 92.29 | 49.68 | 8.2 | 144.7 | 101.73 | 55.33 | 1.8 | 4.9 |
| Clumped | 88.99 | 47.33 | 2.8 | 11.6 | 88.99 | 47.33 | 2.8 | 11.5 |
| R [pc] | ||||||||
| All | 2.32 | 2.26 | 3.1 | 30.7 | 2.23 | 2.15 | 3.7 | 43.6 |
| Ring-like | 3.24 | 3.44 | 1.4 | 3.3 | 2.71 | 3.25 | 1.1 | 0.8 |
| Elongated | 2.24 | 2.17 | 4.3 | 56.2 | 2.23 | 2.17 | 4.3 | 57.6 |
| Concentrated | 1.90 | 1.51 | 3.2 | 24.3 | 1.86 | 1.40 | 1.7 | 4.7 |
| Clumped | 2.67 | 2.37 | 1.7 | 4.1 | 2.67 | 2.34 | 1.7 | 4.1 |
| συ[Km s–1] | ||||||||
| All | 0.76 | 0.53 | 6.9 | 158.5 | 0.74 | 0.49 | 2.6 | 12.0 |
| Ring-like | 0.99 | 0.89 | 2.2 | 10.5 | 0.84 | 0.86 | 1.9 | 4.3 |
| Elongated | 0.73 | 0.48 | 2.6 | 11.7 | 0.73 | 0.48 | 2.5 | 11.3 |
| Concentrated | 0.70 | 0.39 | 19.4 | 522.1 | 0.72 | 0.38 | 1.9 | 5.5 |
| Clumped | 0.83 | 0.60 | 2.5 | 11.5 | 0.83 | 0.60 | 2.6 | 11.6 |
| ARMA | ||||||||
| All | 4.95 | 3.66 | 1.6 | 4.6 | 4.85 | 3.46 | 1.7 | 5.3 |
| Ring-like | 7.11 | 4.72 | 1.5 | 3.9 | 8.18 | 5.71 | 1.6 | 4.4 |
| Elongated | 5.25 | 3.45 | 1.5 | 3.5 | 5.19 | 3.41 | 1.5 | 3.6 |
| Concentrated | 3.03 | 2.04 | 2.9 | 18.7 | 2.75 | 1.89 | 1.5 | 4.6 |
| Clumped | 4.60 | 3.25 | 1.3 | 2.7 | 4.59 | 3.21 | 1.3 | 2.8 |
| αvir | ||||||||
| All | 1.25 | 1.31 | 8.4 | 125.7 | 1.25 | 1.29 | 9.1 | 144.1 |
| Ring-like | 1.50 | 1.68 | 4.3 | 27.1 | 1.74 | 1.80 | 2.4 | 6.1 |
| Elongated | 1.31 | 1.34 | 8.9 | 140.4 | 1.31 | 1.33 | 8.9 | 139.5 |
| Concentrated | 0.98 | 0.90 | 8.5 | 105.7 | 0.98 | 0.93 | 7.8 | 94.1 |
| Clumped | 1.08 | 1.18 | 9.6 | 135.7 | 1.08 | 1.18 | 9.6 | 135.0 |
| Length [pc] | ||||||||
| All | 7.60 | 9.43 | 3.6 | 37.2 | 7.32 | 8.77 | 4.4 | 53.9 |
| Ring-like | 12.96 | 15.21 | 1.5 | 2.9 | 10.84 | 15.20 | 1.3 | 1.5 |
| Elongated | 7.71 | 8.87 | 5.0 | 66.2 | 7.69 | 8.82 | 5.0 | 67.5 |
| Concentrated | 4.73 | 4.87 | 3.8 | 25.1 | 4.38 | 4.13 | 2.4 | 9.9 |
| Clumped | 8.39 | 10.00 | 2.1 | 6.2 | 8.34 | 9.95 | 2.1 | 6.2 |
Notes. The properties are mass (M), surface density (Σ), radius (R), velocity dispersion (συ), aspect ratio (ARMA), virial parameter (αvir), and length (lengthMA). The median is an estimate of the average of a distribution. The interquartile range (IQR) is the difference between the 75th percentile and the 25th percentile of the distribution and is a measure of the variability in the data. Skewness is a measure of symmetry of a distribution, and the positive and negative values signify the data being skewed left and right, respectively. Kurtosis describes the outliers or extremities in the distribution with a high value representing a highly tailed distribution.
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