Planets of 0.8 Earth radii and larger retain atmospheres over multi-gigayear timescales in the habitable zone under default stagnant-lid conditions, while smaller ones lose them, with initial carbon inventory as the dominant control.
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2 Pith papers cite this work. Polarity classification is still indexing.
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2026 2representative citing papers
Six seismic solar analogs have masses 0.91-1.04 solar masses, radii 0.95-1.08 solar radii, and ages 1.8-9.1 Gyr, with one star matching the Sun closely enough to be called a solar twin.
citing papers explorer
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Smaller Than Earth Habitability Model (STEHM): The Lower Size Limit for Atmosphere Retention in the Habitable Zone
Planets of 0.8 Earth radii and larger retain atmospheres over multi-gigayear timescales in the habitable zone under default stagnant-lid conditions, while smaller ones lose them, with initial carbon inventory as the dominant control.
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Characterizing six seismic solar analogs observed by Kepler, K2, and HERMES
Six seismic solar analogs have masses 0.91-1.04 solar masses, radii 0.95-1.08 solar radii, and ages 1.8-9.1 Gyr, with one star matching the Sun closely enough to be called a solar twin.