Open Access
Table 1
Observed emission lines.
| Species | Transition | Frequency (GHz) | Eup (K) | Instrument | rms (mK) |
|---|---|---|---|---|---|
| Effelsberg 100-m | |||||
| p-NH3 | (1,1) | 23.694 | 23.27 | XFFTS | 89 |
| p-NH3 | (2,2) | 23.723 | 64.45 | XFFTS | 44 |
| IRAM 30-m (2017) | |||||
| N2H+ | 1−0 | 93.173 | 4.47 | FTS | 50 |
| 12CO | 1−0 | 115.271 | 5.53 | FTS | 200 |
| 13CO | 1−0 | 110.201 | 5.29 | FTS & VESPA | 100/300 |
| C18O | 1−0 | 109.782 | 5.27 | FTS & VESPA | 100/300 |
| IRAM 30-m (2019) | |||||
| N2H+ | 1−0 | 93.176 | 4.47 | VESPA | 77 |
| N2D+ | 1−0 | 77.109 | 3.70 | FTS | 25 |
| o-NH2D | 111−101 | 85.926 | 20.68 | FTS | 27 |
| HCO+ | 1−0 | 89.189 | 2.975 | VESPA | 27 |
| SiO | 2−1 | 86.847 | 6.252 | FTS | 29 |
| CH3OH | E2 21,2−11,1 | 96.73936 | 12.54 | FTS | 58 |
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