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Fig. 16

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Location of HIP 29442 c (upper panel) and HIP 29442 b and d (lower panel) in the mass radius diagram, in relation to the expected radius spread at an age of 5 Gyr according to Kubyshkina & Fossati (2022), who ran a database of evolutionary tracks for planets with pure H/He envelopes. The solid lines show the lower model boundary, the short dashed lines (labelled “basic setup” in the legend) the upper model boundary assuming initial H/He mass fractions calculated according to Mordasini (2020) and the long dashed lines (labelled “migrated scenario”) assuming massive initial H/He mass fractions.

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