Hycean models with a 1-bar H2 envelope, percent-level CH4 and CO, and CO2 at 10^-3 to 10^-2 reproduce the 0.8-5.2 μm JWST spectra of K2-18b.
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2 Pith papers cite this work. Polarity classification is still indexing.
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2026 2representative citing papers
Climate states on exoplanets with the same atmospheric composition create different reflectance spectra, changing the detectability of atmospheric features and biosignatures, with seasonal variations on high-obliquity worlds adding time-dependent signals.
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Impact of Climate States and Seasons on Future Exo-Earth Observations
Climate states on exoplanets with the same atmospheric composition create different reflectance spectra, changing the detectability of atmospheric features and biosignatures, with seasonal variations on high-obliquity worlds adding time-dependent signals.