Table 2
Filament properties.
| Field | ⟨N(H2)⟩ | max(N(H2)) | T | M | L | Mline | Ml,crit,TH | Ml,crit,TH+NT |
|---|---|---|---|---|---|---|---|---|
| (1022 cm−2) | (1022 cm−2) | (K) | (M⊙) | (pc) | (M⊙pc−1) | (M⊙pc−1) | (M⊙ pc−1) | |
| G17 | 0.6 ± 0.4 | 2.5 ± 1.2 | 24.1 ± 3.4 | 6443 ± 3226 | 20.7 ± 0.6 | 310± 155 | 39.6 ± 19.8 | 267 ± 134 |
| G202 | 0.6 ± 0.4 | 3.0 ± 1.5 | 20.0 ± 1.0 | 555 ± 279 | 5.4 ± 0.4 | 103 ± 52 | 32.9 ± 16.6 | 261 ± 132 |
| Nℋ | 1.8 ± 3.7 | 60.5 ± 30.2 | 23.3 ± 4.5 | 696 ± 358 | 2.9 ± 0.4 | 243 ± 128 | 38.3 ± 19.7 | 206 ± 106 |
| Nℋ,crop | 1.7 ± 1.6 | 9.9 ± 4.9 | 21.8 ± 2.7 | 233 ± 120 | 1.3 ± 0.2 | 173 ± 91 | 35.9 ± 18.5 | 203 ± 105 |
| Nℋ | 1.7 ± 1.9 | 22.9 ± 11.5 | 22.6 ± 3.5 | 280 ± 144 | 1.3 ± 0.2 | 208 ± 110 | 37.3 ± 19.2 | 205 ± 106 |
Notes. Mean column density, maximum N(H2), temperature, T, mass, M, length L, and line mass, Mline for the four filaments. Column densities are the mean over the Av ≥ 3mag region. We assume an uncertainty in temperature of 1 K. Also assuming an error in κ of 50%, we calculate a 50% uncertainty in N (H2). Masses are derived using NP . Assuming a 50 pc uncertainty in distance, the uncertainties in M and Mline are approximately 50% due to propagation of uncertainty. M1,crit,th is the critical line mass assuming only thermal support, whereas M1,crit,TH+NT includes also turbulent support. We assume an uncertainty in σNT of 0.2 km s−1. G208crop (Nℋ) refers to the Nℋ map cropped to the dimensions of the Nℱ map.
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