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Table 3
Molecular data of the HCN and HNC isotopologues observed with APEX.
| Species | Transition | Frequency | E up | log (Aul) |
| [GHz] | [K] | [s-1] | ||
|
|
||||
| APEX-1 | ||||
| D13CN | J = 3−2 | 213.51987 | 20.49 | –3.36216 |
| DCN | J = 3−2 | 217.23854 | 20.85 | –3.33964 |
| H13C15N | J = 3−2 | 251.17523 | 24.11 | –3.15217 |
| HC15N | J = 3−2 | 258.15700 | 24.78 | –3.11641 |
| H13CN | J = 3−2 | 259.01180⋆ | 24.86 | –3.11216 |
| HN13C | J = 3−2 | 261.26331 | 25.08 | –3.18837 |
| HCN | J = 3−2 | 265.88643 | 25.52 | –3.07662 |
| H15NC | J = 3−2 | 266.58780 | 25.59 | –3.16196 |
| HNC | J = 3−2 | 271.98114 | 26.11 | –2.94523 |
| DCN | J = 4–3 | 289.64492 | 34.75 | –2.94907 |
|
|
||||
| APEX-2 | ||||
| HC15N | J = 4–3 | 344.20011 | 41.30 | –2.72583 |
| H13CN | J = 4–3 | 345.33977⋆ | 41.43 | –2.72161 |
| HN13C | J = 4–3 | 348.34027 | 41.80 | –2.79774 |
| DCN | J = 5–4 | 362.04575 | 52.13 | –2.64860 |
| HNC | J = 4–3 | 362.63030 | 43.51 | –2.55463 |
Notes. HCN isotopologue data are from the CDMS catalog (Müller et al. 2001, 2005) and HNC isotopologues are from the JPL catalogue (Pickett et al. 1998), all obtained through www.splatalogue.net.
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