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Table 2.
Molecular transitions detected.
| Molecule | Resolved quantum numbers | ν (GHz) | Rel. Intensity | ||
|---|---|---|---|---|---|
| CCH | N = 1 → 0 |
 |
F = 2 → 1 | 87.317 | |
 |
F = 1 → 1 | 87.402 | |||
| HCN | J = 1 → 0 | F = 0 → 1 | 88.630 | 0.3333 | |
| F = 2 → 1 | 88.632 | 0.5555 | |||
| F = 1 → 1 | 88.634 | 0.1111 | |||
| HCO+ | J = 1 → 0 | 89.189 | |||
| HNC(a) | J = 1 → 0 | 90.664 | |||
| 13CO | J = 1 → 0 | 110.201 | |||
| CN | N = 1→0 |
 |
 |
113.170 | |
 |
 |
113.191 | |||
 |
 |
113.491 | |||
| 12CO | J = 1 → 0 | 115.271 | |||
| HCN | J = 2 → 1 | F = 2 → 2 | 177.260 | 0.0833 | |
| F = 1 → 0 | 177.260 | 0.1111 | |||
| F = 2 → 1 | 177.261 | 0.2500 | |||
| F = 3 → 2 | 177.261 | 0.4667 | |||
| F = 1 → 2 | 177.262 | 0.0056 | |||
| F = 1 → 1 | 177.263 | 0.0833 | |||
| HCO+ | J = 2 → 1 | 178.375 | |||
| HNC | J = 2 → 1 | 181.325 | |||
| 12CO | J = 2 → 1 | 230.538 | |||
| HCN | J = 3 → 2 | 265.886 | |||
| HCO+ | J = 3 → 2 | 267.558 | |||
| HNC | J = 3 → 2 | 271.981 | |||
Notes. Line frequencies and relative intensities were measured in the laboratory and published in Müller et al. (2001) and Müller et al. (2005). Frequencies of HCN transitions (and their hyperfine components) were established by Mullins et al. (2016).
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