Table 4
Molecular lines (species, transition, frequency, and upper energy level Eu) identified.
| Species | Transition | ν0 | Eu | TSc/TS9 | |
| (GHz) | (K) | ||||
|
|
|||||
| SiO | 5–4 | 217.104984 | 31.2 | – | |
| DCN | 3–2 | 217.238531 | 20.9 | 1.32 | |
| c-HCCCH | 6(1, 6)–5(0, 5) | 217.822141 | 38.6 | 1.47 | |
| CH3OH | 4(2, 2)–3(1, 2) | 218.440047 | 45.5 | – | |
| H2CO | 3(0, 3)–2(0, 2) | 218.222188 | 21.0 | 1.39 | |
| ... | 3(2, 2)–2(2, 1) | 218.475641 | 68.1 | 1.30 | |
| ... | 3(2, 1)–2(2, 0) | 218.760078 | 68.1 | 1.41 | |
| C18O | 2–1 | 219.5603 | 15.8 | 1.19 | |
| SO | 5, 6–4, 5 | 219.949438 | 35.0 | 1.45 | |
| 13CO | 2–1 | 220.3986 | 15.86 | 0.97 | |
| CO | 2-1 | 230.538 | 16.6 | 0.75 | |
| 13CS | 5–4 | 231.220688 | 33.3 | – | |
| Hα | H30α | 231.900930 | Rec. | – | |
| SO | 8, 9–7, 8 | 346.528594 | 78.8 | 2.40 | |
| H13CO+ | 4–3 | 346.998347 | 41.6 | 3.37 | |
| H2CS | 10(1, 9)–9(1, 8) | 348.534250 | 105.2 | – | |
| C2H | 4(7/2, 4)–3(5/2, 3) | 349.399342 | 41.9 | 2.88 | |
| ... | 4(9/2, 4)–3(7/2, 3) | 349.339067 | 41.9 | 2.5 | |
| Hα | H26α | 353.622747 | Rec. | – | |
| HCN | 4–3 | 354.505469 | 42.5 | 1.80 | |
| HCO+ | 4–3 | 356.734250 | 42.8 | 1.62 | |
Notes. All lines were detected in both positions. Also the ratio of the antenna peak temperature between the offset position (source Sc ) and source S9 is given in the last column (a hyphen indicates no significant difference for very weak lines).
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