Table 5
Internal structure parameter for the five planets.
| Planet | Core | Mantle | Water | Gas | Si/Fe | Mg/Fe |
|---|---|---|---|---|---|---|
| HD 23472d |  |
 |
 |
 |
 |
 |
| HD 23472e |  |
 |
 |
 |
 |
 |
| HD 23472f |  |
 |
 |
 |
 |
 |
| HD 23472b |  |
 |
 |
 |
 |
 |
| HD 23472c |  |
 |
 |
 |
 |
 |
Notes. “Core” is the core mass fraction, “Mantle” the mantle mass fraction, “Water” the water mass fraction, “Gas” the log (base 10) of the mass of gas (in Earth masses), “Si/Fe” the Si/Fe bulk molar fraction and “Mg/Fe/ the Mg/Fe bulk molar fraction. The uncertainties correspond to the 5 and 95% percentile, while the central value corresponds to the median.
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