Table 6
Elemental fractions at the sonic point for planets HIP 29442 b, HIP 29442 c, and HIP 29442 d predicted by CHAIN.
| Planet | Model | H0 (%) | H+ (%) | He0 (%) | He+ (%) | He+2 (%) | O0 (%) | O+ (%) | O+2 (%) |
|---|---|---|---|---|---|---|---|---|---|
| b | H/He | 31.02/24.30 | 59.80/46.86 | 2.78/8.65 | 6.08/18.92 | 0.23/0.71 | 0.02/0.24 | 0.02/0.30 | 7.4 × 10−4/0.01 |
| b | H2O | 2.92/1.22 | 80.81/33.89 | 0.38/0.64 | 6.34/10.57 | 1.64/2.74 | 0.17/1.11 | 3.44/23.10 | 3.98/26.72 |
| c | H/He | 54.67/42.84 | 36.15/28.32 | 5.03/15.67 | 3.99/12.42 | 0.06/0.19 | 0.03/0.38 | 0.01/0.18 | 5 × 10−5/6 × 10−4 |
| c | H2O | 0.37/0.11 | 73.03/22.20 | 0.05/0.06 | 4.33/5.23 | 2.96/3.58 | 0.01/0.07 | 2.17/10.55 | 11.97/58.20 |
| d | H/He | 19.71/15.44 | 71.11/55.72 | 1.75/5.46 | 6.84/21.28 | 0.49/1.53 | 0.01/0.15 | 0.03/0.37 | 0.003/0.04 |
| d | H2O | 0.44/0.15 | 72.95/24.70 | 0.03/0.04 | 3.26/4.39 | 4.05/5.44 | 0.01/0.05 | 1.36/7.38 | 10.68/57.84 |
Notes. The fractions of the elements are given in the format (number fraction)/(mass fraction). Note, that the total abundancies of each element (neutral atoms and ions together) were set based on the interior models and do not vary with altitude; the ion/neutral and atom/molecule fractions are set by the chemical framework.
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