Table 1
WASP-84b predicted atmospheric abundances for the inner and outer formation regions.
| Region | Element | Minimum | Maximum | Best Match | |||
|---|---|---|---|---|---|---|---|
| Number ratio | Normalised ratio | Number ratio | Normalised ratio | Number ratio | Normalised ratio | ||
| Inner | C/O | 0.161 | 0.252 | 0.197 | 0.308 | 0.197 | 0.308 |
| C/H | 3.05 × 10−3 | 10.45 | 3.77 × 10−3 | 12.89 | 3.77 × 10−3 | 12.89 | |
| O/H | 1.85 × 10−2 | 40.50 | 1.91 × 10−2 | 41.72 | 1.91 × 10−2 | 41.72 | |
| Mg/H | 1.06 × 10−5 | 0.26 | 1.1 × 10−5 | 0.27 | 1.1 × 10−5 | 0.27 | |
| Si/H | 9.74 × 10−6 | 0.26 | 1.01 × 10−5 | 0.27 | 1.01 × 10−5 | 0.27 | |
| S/H | 1.41 × 10−4 | 9.20 | 1.47 × 10−4 | 9.54 | 1.47 × 10−4 | 9.54 | |
| Fe/H | 9.46 × 10−6 | 0.27 | 9.72 × 10−6 | 0.27 | 9.72 × 10−6 | 0.27 | |
| Outer | C/O | 0.025 | 0.039 | 0.039 | 0.061 | 0.025 | 0.039 |
| C/H | 5.76 × 10−4 | 1.97 | 7.42 × 10−4 | 2.94 | 5.76 × 10−4 | 1.98 | |
| O/H | 2.05 × 10−2 | 44.84 | 2.34 × 10−2 | 51.18 | 2.34 × 10−2 | 51.18 | |
| Mg/H | 6.08 × 10−6 | 0.15 | 7.9 × 10−6 | 0.19 | 6.08 × 10−6 | 0.15 | |
| Si/H | 5.58 × 10−6 | 0.15 | 7.25 × 10−6 | 0.19 | 5.58 × 10−6 | 0.15 | |
| S/H | 1.57 × 10−4 | 10.21 | 1.82 × 10−4 | 11.85 | 1.82 × 10−4 | 11.85 | |
| Fe/H | 5.25 × 10−6 | 0.15 | 6.82 × 10−6 | 0.19 | 5.25 × 10−6 | 0.15 | |
Notes. For each element, Number Ratio is the absolute number ratio, and Normalised Ratio is the value normalised to the host star’s abundance. The minimum and maximum values correspond to the range within the constrained region, and the best match is the ratio at the data point that most closely matches the heavy element content of WASP-84b.
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