Table 2.
Parameters used in the derivation of the column densities.
| Line | Tex (K) | Q(Tex) | Eu/kb (K) | A (10−5 s−1) | gu |
|---|---|---|---|---|---|
| CH3OH (A+) | 5, 6.5, 8 | 5.46, 10.09, 15.37 | 6.96 | 0.34 | 5 |
| CH3OH (E2) | 5, 6.5, 8 | 5.46, 10.09, 15.37 | 12.53 | 0.256 | 5 |
| CH2DOH (20,2–10,1) | 5, 6.5, 8 | 9.60, 15.25, 22.45 | 6.40 | 0.202 | 5 |
| CH2DOH (30,3–20,2) | 5, 6.5, 8 | 9.60, 15.25, 22.45 | 12.83 | 0.730 | 7 |
H CO (21,2–11,1) |
7 | 8.95 | 21.72 | 4.931 | 15 |
| HDCO (21,1–11,0) | 7 | 7.67 | 12.23 | 4.591 | 5 |
| D2CO (21,2–11,1) | 7 | 15.64 | 13.37 | 2.583 | 5 |
| C17O (1–0) | 10 | 24.37 | 5.39 | 0.0067 | 6 |
Notes. Columns are: excitation temperature and the corresponding partition function, the energy of the upper levels of the transitions relative to the ground states, the Einstein coefficients and the degeneracy of the upper levels. For the case of C17O these parameters correspond to the isolated hyperfine component. The references for these spectroscopic parameters can be found in Table 1.
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