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Table 2
CO ice electronic transitions observed in the VUV photoabsorption spectra of CO2 ice deposited at 20 and 75 K and then irradiated with 1 keV electrons at a total dose of 9.9 × 102 eV/16u in the 120−160 nm spectral range.
| Pure CO | CO2 irr., 20 K | CO2 irr., 75 K | |||
|---|---|---|---|---|---|
| [nm] | [eV] | [nm] | [eV] | [nm] | [eV] |
| 127.1 | 9.75 | ||||
| 129.0 | 9.61 | ||||
| 130.8 | 9.48 | ||||
| 133.0 | 9.32 | 132.4 | 9.36 | ||
| 135.3 | 9.16 | 134.8 | 9.20 | ||
| 137.6 | 9.01 | 137.1 | 9.04 | 138.1 | 8.98 |
| 140.1 | 8.85 | 139.6 | 8.88 | 140.4 | 8.83 |
| 142.8 | 8.68 | 142.3 | 8.71 | 143.1 | 8.66 |
| 145.6 | 8.52 | ||||
| 146.1 | 8.49 | 145.1 | 8.54 | 145.7 | 8.51 |
| 148.6 | 8.34 | ||||
| 149.6 | 8.29 | 148.2 | 8.37 | 148.9 | 8.33 |
| 152.0 | 8.16 | ||||
| 153.1 | 8.10 | 151.7 | 8.17 | 152.0 | 8.16 |
| 156.7 | 7.91 | 155.5 | 7.97 | 154.9 | 8.00 |
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