Table 2
Parameters of best-fit LVG models.
| Gas phase | r0 (pc) | Tkin | log n(H2) | log N(H2) | ||||
|
|
||||||||
| CND-S | low exc. | 0.31 | 200 |
4.5 |
22.64 | |||
| high exc. | 0.08 | 500 |
5.2 |
23.34 | ||||
| CND-N | low exc. | 0.32 | 175 |
4.5 |
22.35 | |||
| high exc. | 0.06 | 325 |
5.3 |
23.15 | ||||
Notes. For each of the two gas phases we quote the kinetic temperature and H2 density, the equivalent radius (source solid angle) and the H2 column density. The latter is calculated via N(H2) = 3.09 × 1018 n(H2) dv (δv/δr)-1. Recall that model fits are performed in restricted velocity windows only, Table 1. Uncertainties describe the 3 dB χ2 fall-off, see Fig. 3.
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