From Cold to Hot Irradiated Gaseous Exoplanets: Toward an Observation-based Classification Scheme

A carbon-to-oxygen ratio (C/O) of around unity is believed to act as a natural separator of water- and methane-dominated spectra when characterizing exoplanet atmospheres. In this paper, we quantify the C/O ratios at which this separation occurs by calculating a large self-consistent grid of cloud-f...

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