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Table B.1
Spectroscopic parameters of the observed transitions.
| Transition | Frequency | E u | A ul | g u | |
| [GHz] | [K] | [s-1] | |||
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| CH 2Π1/2, N = 1, J = 3/2 − 1/2 | |||||
| P = 2− − 1+ | 536.76115 | 0.00072 | 0.0638 | 5 | |
| P = 1− − 1+ | 536.78195 | 0.00072 | 0.0213 | 3 | |
| P = 1− − 0+ | 536.79568 | 0.0 | 0.0425 | 3 | |
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| CH 2Π1/2, N = 2, J = 5/2 − 3/2 | |||||
| P = 3+ − 2− | 1656.961 | 25.727 | 0.03719 | 7 | |
| P = 2+ − 2− | 1656.970 | 25.727 | 0.00372 | 5 | |
| P = 2+ − 1− | 1656.972 | 25.727 | 0.03348 | 5 | |
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| CCH N = 1–0 | |||||
| J = 3/2–1/2, F = 1–1 | 87.28410 | 0.00216 | 2.5920 × 10-7 | 3 | |
| J = 3/2–1/2, F = 2–1 | 87.31690 | 0.00216 | 1.5274 × 10-6 | 5 | |
| J = 3/2–1/2, F = 1–0 | 87.32859 | 0.00000 | 1.2684 × 10-6 | 3 | |
| J = 1/2–1/2, F = 1–1 | 87.40199 | 0.00216 | 1.2715 × 10-6 | 3 | |
| J = 1/2–1/2, F = 0–1 | 87.40716 | 0.00216 | 1.5324 × 10-6 | 1 | |
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| CCH N = 3–2 | |||||
| J = 7/2–5/2, F = 4–3 | 262.00426 | 12.57513 | 5.30542 × 10-5 | 9 | |
| J = 7/2–5/2, F = 3–2 | 262.00648 | 12.57383 | 5.10470 × 10-5 | 7 | |
| J = 5/2–3/2, F = 3–2 | 262.06499 | 12.58203 | 4.87506 × 10-5 | 7 | |
| J = 5/2–3/2, F = 2–1 | 262.06747 | 12.58261 | 4.45975 × 10-5 | 5 | |
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| CCH N = 6–5 | |||||
| J = 13/2–11/2, F = 7–6 | 523.97157 | 62.87103 | 4.5697 × 10-4 | 15 | |
| J = 13/2–11/2, F = 6–5 | 523.97217 | 62.86987 | 4.5179 × 10-4 | 13 | |
| J = 11/2–9/2, F = 6–5 | 524.03390 | 62.88685 | 4.4939 × 10-4 | 13 | |
| J = 11/2–9/2, F = 5–4 | 524.03453 | 62.88757 | 4.4205 × 10-4 | 11 | |
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| c-C3H2JKA,KC = 21,2 − 10,1 | 85.33889 | 4.1 | 2.55335 × 10-5 | 15 | |
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| c-C3H2JKA,KC = 40,4 − 31,3 | 150.82067 | 19.3 | 1.79933 × 10-4 | 9 | |
| c-C3H2JKA,KC = 41,4 − 30,3 | 150.85191 | 17.0 | 1.80086 × 10-4 | 27 | |
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| c-C3H2J = 6–5 | |||||
| KA,KC = 1,6 − 0,5 | 217.82215 | 36.3 | 5.93376 × 10-4 | 39 | |
| KA,KC = 0,6 − 1,5 | 217.82215 | 38.6 | 5.93403 × 10-4 | 13 | |
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| c-C3H2JKA,KC = 51,4 − 42,3 | 217.94005 | 33.1 | 4.42680 × 10-4 | 33 | |
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| c-C3H2JKA,KC = 43,2 − 32,1 | 227.16913 | 26.7 | 3.42484 × 10-4 | 27 | |
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| c-C3H2J = 7–6 | |||||
| KA,KC = 0,7–1,6 | 251.31434 | 48.3 | 9.34953 × 10-4 | 45 | |
| KA,KC = 1,7–0,6 | 251.31434 | 50.7 | 9.34781 × 10-4 | 15 | |
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| c-C3H2J = 6–5 | |||||
| KA,KC = 2,5 − 1,4 | 251.52730 | 45.1 | 7.42318 × 10-4 | 39 | |
Reference. CH: (McCarthy et al. 2006) and CDMS; CCH: (Padovani et al. 2009) and CDMS; c-C3H2: JPL.
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