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Table 2

Thermal and nonthermal parameters derived from DR21, OMC-1, and N113.

Parameter DR21 (~0.1 pc) OMC-1(a) (~0.06 pc) N113(b) (~0.4pc)



Range Median Mean Range Median Mean Range Median Mean
H2CO line ratio 0.08–0.42 0.22 0.22 ± 0.01 0.12–0.61 0.21 0.28 ± 0.01 0.10–0.38 0.21 0.22 ± 0.01
Tkin (K) 23.9–114.5 46.4 48.3 ± 0.5 30–>200 48.5 62.0 ± 2.0 27.6–105.4 48.5 51.4 ± 0.4
σT (km s−1) 0.08–0.18 0.11 0.11 ± 0.01 0.09–0.27 0.11 0.12 ± 0.01 0.08–0.16 0.11 0.11 ± 0.01
σNT (km s−1) 0.74–4.40 1.47 1.60 ± 0.02 0.34–2.78 1.64 0.98 ± 0.02 0.93–2.76 1.64 1.69 ± 0.01
cs (km s−1) 0.29–0.63 0.40 0.41 ± 0.01 0.30–0.97 0.40 0.44 ± 0.01 0.30–0.58 0.40 0.40 ± 0.01
𝓜 1.9–10.3 3.7 4.0 ± 0.1 0.7–4.3 4.2 2.3 ± 0.1 2.3–6.2 4.2 4.2 ± 0.1

Notes. (a)Parameters of OMC-1 taken from Tang et al. (2018a). (b)Parameters of N113 taken from Tang et al. (2021). The values enclosed in parentheses denote the linear scale of each respective source. The errors shown in Cols. 4 and 7 are the standard deviations of the mean.

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