Table 1
Parameters of the dense cores in the DR21 filament.
| Dense core | Offset | Transition | ∫ Tmbdυ | VLSR | FWHM | Tmb | σT | σNT | cs | 𝓜 | Tkin | Tturb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (“, ”) | (K km s−1) | (km s−1) | (km s−1) | (K) | (km s−1) | (km s−1) | (km s−1) | (K) | (K) | |||
| N34 | −71.5, −211.5 | 303−202 | 13.0 (0.8) | −2.4 (0.1) | 5.4 (0.5) | 2.3 | 0.15 (0.01) | 2.30 (0.20) | 0.54 (0.05) | 4.3 | 84 (15) | 70 |
| (321−220 +322−221 )/2 | 4.6 (0.4) | −2.4 (0.3) | 6.9 (0.7) | 0.6 | ||||||||
| N36 | −29.5, 40.5 | 303−202 | 10.2 (0.4) | −3.2 (0.1) | 4.0 (0.2) | 2.4 | 0.11 (0.01) | 1.68 (0.07) | 0.40 (0.02) | 4.2 | 46 (5) | 43 |
| (321−220 +322−221 )/2 | 2.2 (0.2) | −3.2 (0.2) | 3.8 (0.5) | 0.5 | ||||||||
| N37 | −29.5, 106.5 | 303−202 | 5.0 (0.4) | −2.8 (0.1) | 3.5 (0.3) | 1.4 | 0.10 (0.01) | 1.47 (0.13) | 0.36 (0.04) | 4.0 | 38 (7) | 36 |
| (321−220 +322−221 )/2 | 0.8 (0.2) | −2.9 (0.4) | 3.1 (0.8) | 0.3 | ||||||||
| N38 | −17.5, −25.5 | 303−202 | 27.9 (2.5) | −2.9 (0.1) | 2.7 (0.2) | 4.8 | 0.13 (0.01) | 1.15 (0.07) | 0.44 (0.02) | 2.6 | 57 (6) | 50 |
| (321−220 +322−221 )/2 | 7.5 (0.2) | −2.9 (0.1) | 3.0 (0.2) | 1.2 | ||||||||
| N40 | −11.5, 52.5 | 303−202 | 9.9 (0.5) | −3.5 (0.1) | 3.1 (0.2) | 3.0 | 0.11 (0.01) | 1.32 (0.08) | 0.39 (0.03) | 3.4 | 44 (7) | 41 |
| (321−220 +322−221 )/2 | 2.0 (0.4) | −3.5 (0.2) | 2.8 (0.6) | 0.7 | ||||||||
| N41 | −11.5, 34.5 | 303−202 | 14.5 (0.5) | −2.9 (0.1) | 3.9 (0.2) | 3.5 | 0.12(0.01) | 1.64 (0.06) | 0.42 (0.01) | 3.9 | 51 (3) | 47 |
| (321−220 +322−221 )/2 | 3.5 (0.2) | −2.9 (0.1) | 3.4 (0.2) | 1.0 | ||||||||
| N42 | −5.5, −223.5 | 303−202 | 15.8 (0.4) | −2.4 (0.1) | 3.5 (0.1) | 4.3 | 0.12(0.01) | 1.47 (0.04) | 0.43 (0.02) | 3.5 | 52 (4) | 47 |
| (321−220 +322−221 )/2 | 3.9 (0.3) | −2.5 (0.1) | 3.6 (0.3) | 1.0 | ||||||||
| N43 | −5.5, 106.5 | 303−202 | 8.6 (0.4) | −3.1 (0.1) | 3.8 (0.2) | 2.1 | 0.12(0.01) | 1.62 (0.08) | 0.42 (0.03) | 3.9 | 50 (8) | 46 |
| (321−220 +322−221 )/2 | 2.0 (0.3) | −2.7 (0.3) | 3.9 (0.7) | 0.5 | ||||||||
| N44 | 0.5, −1.5 | 303−202 | 54.7 (1.4) | −2.9 (0.1) | 3.4 (0.1) | 8.0 | 0.17 (0.01) | 1.43 (0.04) | 0.60 (0.04) | 2.4 | 103 (15) | 78 |
| (321−220 +322−221 )/2 | 21.8 (1.6) | −3.0 (0.6) | 3.6 (0.6) | 3.0 | ||||||||
| N46 | 6.5, −193.5 | 303−202 | 22.4 (0.6) | −2.8 (0.1) | 5.5 (0.2) | 3.9 | 0.15 (0.01) | 2.32 (0.08) | 0.52 (0.02) | 4.5 | 77 (7) | 66 |
| (321−220 +322 −221 )/2 | 7.6 (0.4) | −3.2 (0.1) | 5.6 (0.4) | 1.3 | ||||||||
| N47 | 6.5, −175.5 | 303−202 | 16.2 (0.5) | −2.8 (0.1) | 3.3 (0.1) | 4.7 | 0.13 (0.01) | 1.38 (0.06) | 0.47 (0.02) | 3.0 | 63 (5) | 54 |
| (321−220 +322−221 )/2 | 4.7 (0.3) | −3.2 (0.1) | 3.7 (0.3) | 1.2 | ||||||||
| N48 | 6.5, −49.5 | 303−202 | 26.1 (0.4) | −4.4 (0.1) | 4.1 (0.1) | 6.0 | 0.17 (0.01) | 1.73 (0.03) | 0.59 (0.02) | 2.9 | 100 (5) | 77 |
| (321−220 +322−221 )/2 | 10.3 (0.2) | −4.4 (0.1) | 3.6 (0.1) | 2.7 | ||||||||
| N50 | 6.5, −253.5 | 303−202 | 7.8 (0.4) | −1.8 (0.1) | 2.9 (0.2) | 2.6 | 0.09 (0.01) | 1.21 (0.07) | 0.32 (0.02) | 3.8 | 30 (4) | 29 |
| (321−220 +322−221 )/2 | 0.9 (0.2) | −2.2 (0.3) | 3.1 (0.9) | 0.3 | ||||||||
| N51 | 18.5, 130.5 | 303−202 | 15.2 (0.5) | −4.0 (0.1) | 3.1 (0.1) | 4.6 | 0.12(0.01) | 1.32 (0.05) | 0.41 (0.02) | 3.2 | 48 (5) | 44 |
| (321−220 +322−221 )/2 | 3.5 (0.4) | −4.5 (0.2) | 3.1 (0.3) | 1.1 | ||||||||
| N53 | 24.5, 178.5 | 303−202 | 14.8 (0.6) | −3.8 (0.1) | 5.0 (0.2) | 2.8 | 0.11 (0.01) | 2.13 (0.10) | 0.40 (0.02) | 5.4 | 45 (5) | 45 |
| (321−220 +322−221 )/2 | 3.2 (0.4) | −4.6 (0.1) | 2.6 (0.4) | 1.1 | ||||||||
| N54 | 30.5, 160.5 | 303−202 | 7.2 (0.4) | −4.0 (0.1) | 3.1 (0.2) | 2.2 | 0.15 (0.01) | 1.32 (0.10) | 0.52 (0.05) | 2.6 | 77 (16) | 63 |
| (321−220 +322−221 )/2 | 2.4 (0.3) | −3.9 (0.3) | 4.8 (0.8) | 0.5 |
Notes. Offsets relative to our reference position for the DR21 filament (see Sect. 2 and Fig. 4). Velocity-integrated intensity, ∫ Tmbdv, local standard of rest velocity, VLSR, full width at half maximum line width (FWHM), and peak temperature (Tmb) were obtained from Gaussian fitting using CLASS as part of the GILDAS software package. For the thermal and nonthermal line widths, σT and σNT, the sound velocity cs, the Mach number M, the kinetic temperature Tkin, and the turbulent temperature Tturb, see Sects. 3 and 4.3.3. Values in parentheses are uncertainties.
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