Fig. 5
Variation of the Lhy/Len ratio, normalised to the value of the Lhy/Len ratio obtained with η = 15% (adopted for our calculations), as a function of heating efficiency η for two planets orbiting the K2 star with two different Λ values (dashed line: Λ = 21, Mpl = 5 M⊕, Rpl = 1.8 R⊕; solid line: Λ = 8, Mpl = 5 M⊕, Rpl = 4.5 R⊕) and Teq = 1000 K.
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