Table 4.
Photodissociation branching ratios into the channels C(3P) + O(1D), C(1D) + O(3P), and C(3P) + O(3P) for the 1Π(v′ = 2) state of 12C16O at 109 019.4 cm−1.
| Upper state | VUV (cm−1) | Rotational transition | C(3P) + O(1D) (%) | C(1D) + O(3P) (%) | C(3P) + O(3P) (%) |
|---|---|---|---|---|---|
| 109 022.2 | R(0) | 49.7 ± 0.7 (b) | 18.3 ± 0.2 | 31.9 ± 0.7 | |
| 109 024.9 | R(1) | 47.4 ± 1.1 | 19.2 ± 0.3 | 33.4 ± 1.0 | |
| 109 027.9 | R(2)/R(3) | 50.9 ± 0.5 | 18.7 ± 0.3 | 30.4 ± 0.8 | |
| 109 018.4 | Q(1)/Q(2) | 49.9 ± 0.2 | 18.8 ± 0.3 | 31.3 ± 0.1 | |
| 1Π(v′ = 2) | 109 013.5 | Q(4) | 44.9 ± 1.6 | 20.1 ± 0.7 | 34.9 ± 2.3 |
| 50 Mb (a) | 109 011.9 | P(2)/Q(5) | 33.8 ± 0.7 | 20.4 ± 0.3 | 45.7 ± 0.6 |
| 109 004.0 | Unknown (c) | 20.1 ± 0.5 | 22.0 ± 0.5 | 57.9 ± 0.4 | |
| 109 002.8 | Unknown | 17.6 ± 0.9 | 23.7 ± 0.6 | 58.8 ± 1.5 | |
| 108 999.4 | Unknown | 13.8 ± 0.8 | 23.3 ± 0.9 | 62.9 ± 0.2 | |
| 108 997.1 | Q(9) | 18.7 ± 0.8 | 24.0 ± 0.2 | 57.3 ± 1.0 |
Notes.
Photoionization cross section values of C(1D) used for calibrating the measured photodissociation branching ratios; see the first paragraph in Sect. 3 for detail.
The error bars are the standard deviations (1σ) of three independent measurements, which do not include any possible systematic experimental uncertainties; see the second paragraph in Sect. 3 for detail.
These absorption structures are tentatively assigned to be the unknown underlying absorption band as described in Sect. 3.3.
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