New Insights into the Internal Structure of GJ 1214 b Informed by JWST
Matthew C. Nixon,
Anjali A. A. Piette,
Eliza M.-R. Kempton
et al.
Abstract:Recent JWST observations of the sub-Neptune GJ 1214 b suggest that it hosts a high-metallicity (≳100× solar), hazy atmosphere. Emission spectra of the planet show molecular absorption features, most likely due to atmospheric H2O. In light of this new information, we conduct a thorough reevaluation of the planet’s internal structure. We consider interior models with mixed H/He/H2O envelopes of varying composition, informed by atmospheric constraints from the JWST phase curve, in order to determine possible bulk… Show more
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