Table B.2.
Line parameters of the observed transitions of H2CCC in TMC-1.
| Transition | νobs a | ∫  dv b |
vLSR c | Δvd |  e |
σf |
|---|---|---|---|---|---|---|
| (MHz) | (mK × kms−1) | (kms−1) | (kms−1) | (mK) | (mK) | |
| 21, 2 − 11, 1 | 41198.335±0.002 | 82.7±0.1 | 5.70±0.01 | 0.65±0.01 | 120.4 | 0.1 |
| 20, 2 − 10, 1 | 41584.675±0.001 | 57.8±0.1 | 5.76±0.01 | 0.63±0.01 | 86.9 | 0.2 |
| 21, 1 − 11, 0 | 41967.671±0.002 | 84.6±0.1 | 5.75±0.01 | 0.61±0.01 | 130.8 | 0.2 |
| 41, 4 − 31, 3 | 82395.089±0.003 | 61.9±1.3 | 5.71±0.01 | 0.47±0.01 | 124.8 | 3.0 |
| 40, 4 − 30, 3 | 83165.345±0.003 | 31.9±0.4 | 5.77±0.02 | 0.54±0.01 | 55.5 | 0.9 |
| 41, 3 − 31, 2 | 83933.699±0.003 | 56.6±0.4 | 5.75±0.02 | 0.54±0.01 | 97.9 | 0.9 |
| 51, 5 − 41, 4 | 102992.379±0.004 | 25.4±1.2 | 5.73±0.02 | 0.47±0.03 | 51.1 | 3.1 |
| 50, 5 − 40, 4 | 103952.926±0.003 | 86.7±1.1 | 5.71±0.03 | 0.29±0.05 | 28.0 | 3.6 |
| 51, 4 − 41, 3 | 104915.583±0.003 | 19.0±1.1 | 5.77±0.03 | 0.48±0.03 | 37.4 | 2.9 |
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