Table E.1
Band strengths of the bands of interest for the quantification of CO and CO2 on TNO surfaces and for the experiments performed for this work.
| For the fundamental stretching of CO at 4.68 µm | |||
|---|---|---|---|
| Mixing state | Temperature | Band strength | Reference |
| (K) | (×10−17 cm molecule−1) | ||
| Pure | 30 | 1.10 | (1) |
| Pure | 10 | 1.10 | (2) |
| Pure | 25 | 1.12 | (3) |
| Pure | 20 | 0.87 | (4) |
| CO2 :CO (17:1) | 14 | 1.10 | (5) |
| CO2 :CO (0.8:1) | 14 | 1.20 | (5) |
| CO in H2O ice | 10 | > 1.50 | (2) |
| H2O:CO (20:1) | 10 | 1.70 | (6) |
| H2O:CO (26:1) and (2.1:1) | 14 | 1.10 | (5) |
| H2O:CH3OH:CO:NH3 (100:10:1:1) | 10 | 0.56 | (7) |
| H2O:CH3OH:CO:NH3 (100:50:1:1) | 10 | 0.97 | (7) |
| Value used for this work : | 1.10 | ||
| For the ν1 + ν3 combination band of CO2 at 2.70 µm | |||
| Mixing state | Temperature | Band strength | Reference |
| (K) | (×10−18 cm molecule−1) | ||
| Pure | 10 | 1.20 | (8) |
| Pure | 10 | 2.60 | (7) |
| Pure | 14-60 | 1.40-1.50 | (5) |
| Pure | 25 | 1.80 | (3) |
| Pure | 10 | 4.05 | (9) |
| CO:CO2 (20:1) | 10 | 1.50 | (8) |
| CO:CO2 (29:1) | 14 | 3.00 | (5) |
| CO:CO2 (1.3:1) | 14 | 1.50 | (5) |
| H2O:CO2 (10:1) | 10 | 2.30 | (8) |
| H2O:CO2 (1.6:1) | 14 | 1.20 | (5) |
| Value used for this work : | 1.80 | ||
References. (1) Jiang et al. (1975); (2) Palumbo & Strazzulla (1993); (3) Bouilloud et al. (2015); (4) González Díaz et al. (2022); (5) Gerakines et al. (1995); (6) Sandford et al. (1988); (7) Hudgins et al. (1993); (8) Sandford & Allamandola (1990); (9) Gerakines & Hudson (2015).
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