Rocky planets of similar size and larger than Earth are expected to undergo internal geochemical reactions that promote oxidized secondary atmospheres rich in water and carbon dioxide. But chemical exchange timescales between magma ocean interiors and equilibrated atmspheres may change this simplified picture. I show that the highly turbulent magma circulation regime in the interiors of sub-Neptunes may preserve initially reduced mantle compositions inherited from planetary formation, which affects the climate states we can expect to find with exoplanet surveys. [Lichtenberg / ApJL, 2021]
Welcome! I am a research fellow in the department of Atmospheric, Oceanic and Planetary Physics at the University of Oxford. I investigate the growth and evolution of terrestrial worlds to gain a more comprehensive understanding of how the origins of planets and life are interconnected. Please find an introduction to some of my latest projects below.