Table 1
Detected CN (N = 2–1) HF transitions.
| HF component(a) | Transition | ν | Aul | gu | Relative intensities(b) |
|---|---|---|---|---|---|
| [GHz] | |||||
| A | J = 5/2 → 3/2, F = 5/2 → 3/2 | 226.8741908 | 9.62 × 10−5 | 6 | 0.1805 |
| B | J = 5/2 → 3/2, F = 7/2 → 5/2 | 226.8747813 | 1.14 × 10−4 | 8 | 0.2860 |
| C | J = 5/2 → 3/2, F = 3/2 → 1/2 | 226.8758960 | 8.59 × 10−5 | 4 | 0.1074 |
| D | J = 5/2 → 3/2, F = 3/2 → 3/2 | 226.8874202 | 2.73 × 10−5 | 4 | 0.0342 |
| E | J = 5/2 → 3/2, F = 5/2 → 5/2 | 226.8921280 | 1.81 × 10−5 | 6 | 0.0340 |
Notes. (a) CN (2–1) has 19 HF components. We list here the five brightest (hence well-detected) HF components within the observed bandpass, referred to throughout this paper as A to E. Molecular data from Skatrud et al. (1983). (b) Theoretical relative intensities under LTE conditions of the five brightest HF transitions of CN within the bandwidth, adapted from Table 2 in Punzi et al. (2015).
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