Table B.1.
Observed line parameters for C6H in the ν11(μ2Σ) excited and ground states in TMC-1.
| State | Transition$ | νrest a |  |
vLSR | Δv c |  d |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (MHz) | (mK km s−1) | (km s−1) | (km s−1) | (mK) | |||||||||||
| ν11(2Σ) | 12-11 | a | 33462.231±0.010 | 3.92±0.11 | 5.83 | 0.77±0.03 | 4.78±0.07 | ||||||||
| 12-11 | b | 33479.823±0.010 | 2.77±0.07 | 5.83 | 0.77±0.02 | 3.40±0.07 | |||||||||
| 13-12 | a | 36251.528±0.010 | 3.78±0.10 | 5.83 | 0.82±0.03 | 4.20±0.12 | A | ||||||||
| 13-12 | b | 36268.909±0.010 | 2.41±0.05 | 5.83 | 0.69±0.02 | 3.27±0.07 | |||||||||
| 14-13 | a | 39040.824±0.010 | 2.89±0.07 | 5.83 | 0.66±0.03 | 4.11±0.08 | |||||||||
| 14-13 | b | 39057.965±0.010 | 1.95±0.06 | 5.83 | 0.63±0.02 | 2.92±0.09 | |||||||||
| 15-14 | a | 41830.108±0.010 | 2.65±0.10 | 5.83 | 0.67±0.03 | 3.71±0.11 | |||||||||
| 15-14 | b | 41847.005±0.010 | 1.66±0.09 | 5.83 | 0.60±0.04 | 2.61±0.12 | |||||||||
| 16-15 | a | 44619.383±0.010 | 2.30±0.10 | 5.83 | 0.66±0.03 | 3.27±0.12 | |||||||||
| 16-15 | b | 44636.019±0.010 | 1.37±0.13 | 5.83 | 0.68±0.08 | 1.88±0.12 | |||||||||
| 17-16 | a | 47408.647±0.010 | 1.12±0.12 | 5.83 | 0.55±0.07 | 1.92±0.13 | |||||||||
| 17-16 | b | 47425.006±0.010 | 1.03±0.13 | 5.83 | 0.61±0.09 | 1.58±0.16 | |||||||||
| 2Π3/2 | 23/2-21/2 | e | 31881.860±0.002 | 173.68±0.06 | 5.74±0.01 | 1.12±0.01 | 146.04±0.08 | ||||||||
| f | 31885.541±0.002 | 175.02±0.13 | 5.73±0.01 | 1.09±0.01 | 150.28±0.09 | ||||||||||
| 25/2-23/2 | e | 34654.037±0.002 | 156.89±0.14 | 5.74±0.01 | 1.05±0.01 | 140.59±0.07 | |||||||||
| f | 34658.383±0.002 | 156.17±0.09 | 5.74±0.01 | 1.01±0.01 | 144.69±0.09 | ||||||||||
| 27/2-25/2 | e | 37426.192±0.002 | 139.15±0.05 | 5.75±0.01 | 0.97±0.01 | 134.46±0.09 | |||||||||
| f | 37431.255±0.002 | 138.02±0.14 | 5.74±0.01 | 0.94±0.01 | 138.84±0.09 | ||||||||||
| 29/2-27/2 | e | 40198.323±0.002 | 118.21±0.12 | 5.76±0.01 | 0.90±0.01 | 123.29±0.09 | |||||||||
| f | 40204.157±0.002 | 118.74±0.12 | 5.75±0.01 | 0.88±0.01 | 127.34±0.09 | ||||||||||
| 31/2-29/2 | e | 42970.432±0.002 | 91.80±0.10 | 5.76±0.01 | 0.85±0.01 | 100.94±0.12 | |||||||||
| f | 42977.089±0.002 | 91.76±0.10 | 5.75±0.01 | 0.82±0.01 | 104.66±0.11 | ||||||||||
| 33/2-31/2 | e | 45742.519±0.002 | 70.27±0.12 | 5.77±0.01 | 0.80±0.01 | 82.28±0.14 | |||||||||
| f | 45750.052±0.002 | 70.28±0.13 | 5.76±0.01 | 0.77±0.01 | 85.29±0.16 | ||||||||||
| 35/2-33/2 | e | 48514.584±0.002 | 51.51±0.16 | 5.77±0.01 | 0.78±0.01 | 62.27±0.18 | |||||||||
| f | 48523.044±0.002 | 51.00±0.15 | 5.76±0.01 | 0.75±0.01 | 63.69±0.17 | ||||||||||
| 2Π1/2 | 23/2-21/2 | e | 32095.245±0.003 | 2.07±0.09 | 5.76±0.02 | 0.75±0.04 | 2.58±0.08 | ||||||||
| f | 32125.561±0.003 | 1.42±0.08 | 5.83±0.01 | 0.65±0.04 | 2.07±0.10 | ||||||||||
| 25/2-23/2 | e | 34887.115±0.003 | 2.25±0.07 | 5.84±0.02 | 0.98±0.03 | 2.17±0.08 | B | ||||||||
| f | 34917.885±0.003 | 1.86±0.06 | 5.83±0.01 | 0.79±0.03 | 2.21±0.08 | ||||||||||
| 27/2-25/2 | e | 37678.938±0.003 | 1.91±0.13 | 5.80±0.03 | 0.72±0.06 | 2.50±0.17 | C | ||||||||
| f | 37710.199±0.002 | 1.62±0.06 | 5.89±0.02 | 0.73±0.03 | 2.11±0.09 | ||||||||||
| 29/2-27/2 | e | 40470.713±0.003 | 1.61±0.08 | 5.79±0.02 | 0.70±0.04 | 2.17±0.08 | |||||||||
| f | 40502.502±0.003 | 1.75±0.13 | 5.95±0.03 | 0.88±0.08 | 1.87±0.12 | ||||||||||
| 31/2-29/2 | e | 43262.437±0.003 | 1.36±0.10 | 5.79±0.03 | 0.77±0.07 | 1.65±0.11 | |||||||||
| f | 43294.790±0.003 | 1.21±0.10 | 5.85±0.03 | 0.66±0.07 | 1.73±0.10 | ||||||||||
| 33/2-31/2 | e | 46054.109±0.003 | 0.80±0.10 | 5.76±0.03 | 0.53±0.07 | 1.42±0.11 | |||||||||
| f | 46087.062±0.003 | 0.64±0.10 | 6.01±0.05 | 0.74±0.12 | 0.82±0.13 | ||||||||||
| 35/2-33/2 | e | 48845.727±0.003 | 0.53±0.10 | 5.81±0.05 | 0.48±0.09 | 1.03±0.18 | |||||||||
| f | 48879.315±0.003 | 0.86±0.12 | 5.89±0.05 | 0.75±0.12 | 1.08±0.17 | ||||||||||
Notes.
The a and b labels refers to the J = N + 1/2 and J = N − 1/2 fine components of the ν11(2Σ) state. The e and f labels correspond to the two lambda-doubling components of the 2Π3/2 and 2Π1/2 ladders of the 2Π ground electronic state.
Predicted frequencies for the transitions of C6H in MHz. These frequencies are the observed ones for the ν11 vibrational state assuming a vLSR of 5.83 km s−1 (see text).
Line width at half intensity using a Gaussian fit in the line profile (in km s−1). For the 2Π3/2 and 2Π1/2 ladders of the ground state the lines are slightly broadened by the presence of two hyperfine components, which in addition produce a shift of a few kHz to the center frequency. The broadening decreases when J increases.
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