Fig. 5
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Mass-radius relationship of the TOI-178 planets (final posterior), compared with the super-Earth to Mini-Neptune populations for which the mass was derived through RV (Otegi et al. 2020) and TTVs (Hadden & Lithwick 2017; Leleu et al. 2023). The composition lines ‘terrestrial Earth-like’, in solid brown, and pure MgSiO3 ‘rocky’, in dashed brown, are taken from Zeng et al. (2016).
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