activity
20242026
most citedJWST Reveals CH, CO, and HO in a Metal-rich Miscible Atmosphere on a Two-Earth-Radius Exoplanet

29 citations · 96 across the 15 of their papers we have counts for

collaborators
Showing 2025Show all

5 papers · 1 filter

astro-ph.EP2025★ 14 cited

Magma ocean interactions can explain JWST observations of the sub-Neptune TOI-270 d

Matthew C. Nixon, R. Sander Somers, Arjun B. Savel +9

Sub-Neptunes with substantial atmospheres may possess magma oceans in contact with the overlying gas, with chemical interactions between the atmosphere and magma playing an importa…

astro-ph.EP2025★ 9 cited

Redefining interiors and envelopes: hydrogen-silicate miscibility and its consequences for the structure and evolution of sub-Neptunes

James G. Rogers, Edward D. Young, Hilke E. Schlichting

We present the first evolving interior structure model for sub-Neptunes that accounts for the miscibility between silicate magma and hydrogen. Silicate and hydrogen are miscible ab…

astro-ph.EP2025★ 16 cited

Sub-Neptunes Are Drier Than They Seem: Rethinking the Origins of Water-Rich Worlds

Aaron Werlen, Caroline Dorn, Remo Burn +3

Recent claims of biosignature gases in sub-Neptune atmospheres have renewed interest in water-rich sub-Neptunes with surface oceans, often referred to as Hycean planets. These plan…

astro-ph.EP2025

Differentiation, the exception not the rule -- Evidence for full miscibility in sub-Neptune interiors

Edward D. Young, Aaron Werlen, Sarah P. Marcum +2

We investigate the consequences of non-ideal mixing between silicate, iron metal, and hydrogen for the structures of the cores of sub-Neptunes with implications for super-Earths, w…

astro-ph.EP2025★ 22 cited

Atmospheric C/O Ratios of Sub-Neptunes with Magma Oceans: Homemade rather than Inherited

Aaron Werlen, Caroline Dorn, Hilke E. Schlichting +2

Recently, the James Webb Space Telescope has enabled detailed spectroscopic characterization of sub-Neptune atmospheres. With detections of carbon- and oxygen-bearing species such…