Strong Fractionation of Deuterium and Helium in Sub-Neptune Atmospheres along the Radius Valley

We simulate atmospheric fractionation in escaping planetary atmospheres using IsoFATE , a new open-source numerical model. We expand the parameter space studied previously to planets with tenuous atmospheres that exhibit the greatest helium and deuterium enhancement. We simulate the effects of extre...

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Bibliographic Details

Published in:	The Astrophysical Journal
Main Authors:	Collin Cherubim, Robin Wordsworth, Renyu Hu, Evgenya Shkolnik
Format:	Article
Language:	English
Published:	IOP Publishing 2024-01-01
Subjects:	Exoplanet astronomy Exoplanet atmospheres Exoplanet atmospheric composition Exoplanet atmospheric evolution Exoplanet formation Exoplanet evolution
Online Access:	https://doi.org/10.3847/1538-4357/ad3e77