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Radius (km)

Fig. 7.7 Density (a) and temperature (b) profiles obtained for exoplanets of 1-10 Earth masses (Super-Earths). The composition, the mass fraction of the core (32.59 per cent, by analogy with the Earth), and the surface temperature are fixed (After Valencia et al., 2006)

Radius (km)

Fig. 7.7 Density (a) and temperature (b) profiles obtained for exoplanets of 1-10 Earth masses (Super-Earths). The composition, the mass fraction of the core (32.59 per cent, by analogy with the Earth), and the surface temperature are fixed (After Valencia et al., 2006)

The mass-radius relationship deduced from these calculation is in good agreement with the values found by Valencia et al. (2006). It is therefore reasonable to use these models to try to predict the structure of exoplanets with masses comparable with that of the Earth.

7.2 The Internal Structure of Terrestrial-Type Exoplanets and Ocean Planets

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