Fig. 7.

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Simulated specific heating and cooling rate profiles for the atmosphere of HD 97658 b, broken into individual, contributing mechanism (see legend for details); the dark and light gray curves, respectively, trace the photo-heating and cooling rates obtained by TPCI (S16). In the case of the low-gravity, low-irradiation planet HD 97658 b, atmospheric escape is driven by adiabatic expansion, with negligible contribution from radiative cooling.
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