Fig. 9
Mass-radius diagram for all planets with mass and radius measurement better than 20% (from the TEPCat8 database of well-characterised planets; Southworth 2011). M-dwarf host planets are shown in orange, LTT 3780 b and LTT 3780 c with red dots. Theoretical models (Zeng et al. 2016) are overplotted using different lines and colours.
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