Open Access
Table 3
Modelling and parameters.
| (a) RADEX/ndradex results | ||||||||
|---|---|---|---|---|---|---|---|---|
| Comp. | Vel. range (km s−1) | n(H2)(104 cm−3) | Tk (K) | mass (M⊙) | N(CO) (1016 cm−2) | N(13CO) (1015 cm−2) | N(C18O) (1014 cm−2) | CO/13CO |
| A | (35.4, 37.0) | 0.5 ± 0.1 | 24 ± 4 | 1.0 ± 0.2 | 0.30 ± 0.06 | 1.39 ± 0.06 | 5.6 ± 0.2 | 2.2 |
| B | (47.6, 49.1) | 0.6 ± 0.2 | 19 ± 5 | 78 ± 22 | 4.7 ± 1.3 | 4.9 ± 0.5 | 3.9 ± 0.3 | 9.6 |
| C | (69.4, 71.0) | 2.1 ± 0.9 | 18 ± 5 | 1.4 ± 0.2 | 0.47 ± 0.05 | 1.09 ± 0.07 | 1.20 ± 0.02 | 4.3 |
| (b) MADCUBA results | ||||||||
| Comp. | N(C17O) (1014 cm−2) | N(HCO+) (1012 cm−2) | N(HCN) (1012 cm−2) | N(HNC) (1012 cm−2) | N(H13CO+) (1011 cm−2) | N(CN) (1013 cm−2) | N(N2H+) (1011 cm−2) | N(C2H) (1013 cm−2) |
| A | 1.9 ± 0.5 | 2.7 ± 0.3 | 8.2 ± 0.7 | 2.2 ± 0.2 | < 1.6 | 1.2 ± 0.3 | 9 ± 1 | 4.0 ± 0.8 |
| B | 0.9 ± 0.3 | 0.9 ± 0.2 | 1.74 ± 0.07 | 0.94 ± 0.1 | < 0.76 | 0.5 ± 0.1 | < 1.2 | 1.1 ± 0.3 |
| C | < 0.42 | < 0.12 | < 0.39 | < 0.16 | < 1.4 | < 0.15 | < 2.1 | < 0.80 |
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