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A Window for Water-hydrogen Demixing on Warm Metal-rich Sub-Neptunes

  • Authors: Caroline Piaulet-Ghorayeb, Daniel P. Thorngren, Eliza M.-R. Kempton, Justin Lipper, Leslie Rogers, Fernanda Correa Horta, Shi Lin Sun

Caroline Piaulet-Ghorayeb et al 2026 The Astrophysical Journal 1006 .

  • Provider: AAS Journals

Caption: Figure 5.

Contours delineating the region of parameter space where demixing occurs for different planet masses and planetary equilibrium temperatures. The color encodes the planet mass, and the line style encodes the equilibrium temperature. Vertical gray lines indicate different atmosphere metallicities (labeled). None of the models shown crosses the water condensation curve.

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