Table 2
Mean and standard deviation of both the cloud-averaged peak brightness temperature and linewidth distributions across the 1000 toy clouds and Orion B.
| Emission Line | Cloud avg. σv (km s−1) | ORION B avg. σv (km s−1) | Cloud avg. Tpeak (K) | ORION B avg. Tpeak (K) | Pixel scale Tpeak (K) | |||
|---|---|---|---|---|---|---|---|---|
| Mean | Std. Dev. | Mean | Std. Dev. | Mean | Std. Dev. | |||
| 12 CO (J =1→0) | 2.21 | 0.05 | 2.20 | 5.57 | 0.11 | 5.56 | 8.42 | 7.63 |
| 13 CO (J =1→0) | 1.51 | 0.08 | 1.54 | 0.98 | 4.85 × 10−2 | 0.95 | 1.81 | 2.55 |
| HCO+ (J = 1 → 0) | 1.58 | 0.08 | 1.60 | 0.11 | 5.56 × 10−3 | 0.12 | 0.22 | 0.40 |
| C18 O(J =1→0) | 1.22 | 0.13 | 1.07 | 6.21 × 10−2 | 6.20 × 10−3 | 6.34 × 10−2 | 0.15 | 0.37 |
| 12CS (J = 2 → 1) | 1.29 | 0.12 | 1.29 | 4.56 × 10−2 | 4.20 × 10−3 | 4.33 × 10−2 | 0.10 | 0.32 |
| HNC(J =1→0) | 1.40 | 0.11 | 1.44 | 3.93 × 10−2 | 2.90 × 10−3 | 3.41 × 10−2 | 8.53 × 10−2 | 0.22 |
| HCN(J=1→0) | 1.50 (5.0) | 0.16 | 1.48 (5.2) | 6.28 × 10−2 | 3.68 × 10−3 | 6.66 × 10−2 | 0.13 | 0.28 |
| 32SO (NJ = 32 → 21) | 1.22 | 0.14 | 1.19 | 2.42 × 10−2 | 2.73 × 10−3 | 2.27 × 10−2 | 5.80 × 10−2 | 0.20 |
| N2H+ (J = 1 → 0) | 1.17 (6.1) | 0.17 | 1.32 (6.8) | 3.55 × 10−3 | 4.86 × 10−4 | 3.79 × 10−3 | 7.35 × 10−3 | 7.17 × 10−2 |
Notes. Columns 5 and 7 respectively report the ORION B cloud-averaged linewidth and peak brightness temperature values. The mean and standard deviation of the pixel scale peak brightness temperatures from the Orion B spectra used to construct the toy clouds is also reported. For HCN (J =1→0) and N2H+(J = 1 → 0), the cloud-averaged linewidth including the entire hyperfine structure is added in brackets.
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