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Table 3
Inferred D/H in protoplanetary ices.
| Model | f H2 | x H2 | (D/H)ices |
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| Uranusa | 0.108 | 0.521 | (6.75+1.1/–1.2) × 10-5 |
| Neptune 1a | 0.133 | 0.581 | (6.7 ± 1.4) × 10-5 |
| Neptune 2a | 0.055 | 0.343 | (5.1 ± 0.75) × 10-5 |
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| Uranus I (H2O)b | 0.087 | 0.463 | (6.25 ± 1.05) × 10-5 |
| Uranus II (H2O)b | 0.065 | 0.387 | (5.75 ± 0.9) × 10-5 |
| Neptune I (H2O)b | 0.082 | 0.444 | (5.58 ± 1) × 10-5 |
| Neptune II (H2O)b | 0.074 | 0.417 | (5.42 ± 0.95) × 10-5 |
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| Uranus 1c | 0.116 | 0.541 | (6.94 ± 1.3) × 10-5 |
| Uranus 2c | 0.097 | 0.492 | (6.48 ± 1.1) × 10-5 |
| Neptune 1c | 0.150 | 0.614 | (7.04 ± 1.6) × 10-5 |
| Neptune 2ac | 0.178 | 0.661 | (7.71 ± 1.9) × 10-5 |
| Neptune 2bc | 0.124 | 0.560 | (6.46 ± 1.4) × 10-5 |
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