Simulations of TRAPPIST-1 e, f, and g reveal how CO2 and H2O shape atmospheres during magma ocean stages

16. 12. 2024

Simulations of TRAPPIST-1 e, f, and g reveal how CO2 and H2O shape atmospheres during magma ocean stages

Star system: TRAPPIST-1 | Distance from the Sun: 40.7 light years

CO2 slows water loss and extends mantle solidification, affecting habitability. TRAPPIST-1 e may end with a thick CO2 layer or desiccate like inner planets.

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Scientific study

From CO2- to H2O-dominated atmospheres and back -- How mixed outgassing changes the volatile distribution in magma oceans around M dwarf stars external link

Stars mentioned

TRAPPIST-1

M7.5e, Red dwarf

mass: 0.09 M☉

radius: 0.3 R☉

distance: 40.7 ly

stars in the system: 1

exoplanets: 7

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	TRAPPIST-1 40.7 ly			Veiled in Starlight: Impacts of Stellar Contamination on Retrievals of TRAPPIST-1f's Atmospheric Composition 8. 8. 2026
	TRAPPIST-1 40.7 ly			Ultraviolet-Driven Atmospheric Degeneracies Challenge Conventional Biosignature Frameworks for Terrestrial Planets with Ultracool M Dwarf Hosts: An Archean-Analog TRAPPIST-1 e Case Study 6. 6. 2026

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