Table 1
Spectroscopic parameters corresponding to the observed lines.
| Specie | Jup | νij (GHz) | Aij (s−1) | gup | Eup (K) |
|---|---|---|---|---|---|
| 12CO | 1 | 115.2712018 | 7.203 × 10−8 | 3 | 5.53 |
| 12CO | 2 | 230.5380000 | 6.910 × 10−7 | 5 | 16.6 |
| 12CO | 3 | 345.7959899 | 2.497 × 10−6 | 7 | 33.19 |
| 13CO | 1 | 110.2013543 | 6.294 × 10−8 | 3 | 5.29 |
| 13CO | 2 | 220.3986841 | 6.038 × 10−7 | 5 | 15.87 |
| 13CO | 3 | 330.5879652 | 2.181 × 10−6 | 7 | 31.73 |
| C18O | 1 | 109.7821734 | 6.266 × 10−8 | 3 | 5.27 |
| C18O | 2 | 219.5603541 | 6.011 × 10−7 | 5 | 15.81 |
Notes. The quantity Jup is the rotational quantum number, νij and Aij are the frequency and Einsten coefficient of the pure rotational transition, respectively (v = 0, where v is the vibrational quantum number). The quantities Eup and gup are the energy and degeneracy corresponding to the upper level, respectively. The values given are taken from the Cologne Database for Molecular Spectroscopy (Müller et al. 2001, 2005; Endres et al. 2016) and Jet Propulsion Laboratory database (Pickett et al. 1998) and are the numeric values used for all our measures.
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