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Fig. 2

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Temperature, density, and pressure (top, middle, bottom panels) as a function of radius for two models. Solid red lines: 1  M planet with Tsurf = 300 K, Psurf = 1 bar, without ocean, and quasi-solar composition (see text). Dotted blue lines: the same planet, but corresponding to the overall maximum models (iron free, inner mantle made of MgO, outer mantle made of Mg2Si2O6, with maximum ocean depth). In the middle and bottom panels, the black dashed lines indicate the preliminary reference Earth model of Dziewonski & Anderson (1981). Note that no temperature is given in this model. Instead, the grey area reproduces the likely temperature of Earth as mentioned in Sotin et al. (2007).

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