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Table 2
Comparison between PREM and our simplified model for the Earth, treated as an exoplanet.
| Property | Units | PREM | Earth | Difference |
|---|---|---|---|---|
| Total mass | kg | 5.974 × 1024 | 5.974 × 1024 | 0.002% |
| CMF | 0.325 | 0.325 | 0.003% | |
| MMF | 0.675 | 0.675 | 0.001% | |
| Core mean density | g cm−3 | 11.000 | 11.000 | 0.003% |
| Mantle mean density | g cm−3 | 4.447 | 4.448 | 0.004% |
| Planet mean density | g cm−3 | 5.515 | 5.515 | 0.002% |
| Planet mean pressure | GPa | 180.7 | 181.5 | 0.365% |
| Planet mean gravity | m s−2 | 7.68 | 7.69 | 0.124% |
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