16 papers
Testing the prevalence of hydrogen-silicate miscibility in young sub-Neptunes
James G. Rogers, Hilke E. Schlichting
Hydrogen-silicate miscibility can significantly alter the interior structure and thermal evolution of sub-Neptunes. We consider the interplay between this miscibility and stellar-d…
A New Global Chemical Equilibrium Code: Refractory Element Signatures in Super-Earths and Sub-Neptunes
Simon Grimm, Marie-Luise Steinmeyer, Aaron Werlen +3
The atmospheres of super-Earths and sub-Neptunes can be strongly modified by chemical exchange with their molten interiors during long-lived magma ocean phases. Interpreting atmosp…
Characterizing the bolometric-photoevaporative transition in young sub-Neptunes with radiation-hydrodynamic simulations
William Misener, Matthäus Schulik, Matthäus Schulik +2
Hydrodynamic atmospheric escape plays a central role in shaping the demographics of small, close-in exoplanets. Two mechanisms have been proposed to drive mass loss: photoevaporati…
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…
The Effects of Non-ideal Mixing in Planetary Magma Oceans and Atmospheres
Aaron Werlen, Edward D. Young, Hilke E. Schlichting +2
Sub-Neptunes with hydrogen-rich envelopes are expected to sustain long-lived magma oceans that continuously exchange volatiles with their overlying atmospheres. Capturing these int…
An Efficient Shift-and-Stack Algorithm Applied to Detection Catalogs
Steven Stetzler, Mario JuriÄ, Pedro H. Bernardinelli +22
The boundary of solar system object discovery lies in detecting its faintest members. However, their discovery in detection catalogs from imaging surveys is fundamentally limited b…