Table 1.
Main results from the H2O and CO modelling.
| Comp. | Log NH2 | Log NCO | Log  |
Tgas | Tdust | Vdisp |
|---|---|---|---|---|---|---|
| (cm−2) | (cm−2) | (cm−2) | (K) | (K) | (km s−1) | |
| Torus | … | > 18.6 | 18.6 | 250 | 370 | 140 |
| Outflow | 22.0 | 18.5 | 18.4 | 250 | 400 | 155 |
| SF | 23.1 | 19.6 | 17.7 | 100 | 400 | 35 |
| Cold | 23.1 | 19.6 | 17.7 | 20 | 300 | 20 |
Notes. Hydrogen column densities are estimated by using the standard value of the CO/H2 abundance of ∼3.2 × 10−4 (e.g. Bolatto et al. 2013). The CO band is in emission in D1, which is not favourable for a definitive estimation of the CO column density of the torus component (in absorption). Thus, we consider the CO column density of the torus a lower limit. We note that the ALMA hydrogen column density of D1 derived in a beam of ∼134 pc × 107 pc is log NH (cm−2)∼24.1 − 24.4 (see Appendix H).
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