Publications (6)
Regularization of moving boundaries in a Laplacian field by a mixed Dirichlet-Neumann boundary condition: exact results
B. Meulenbroek, U. Ebert, L. Schaefer
The dynamics of ionization fronts that generate a conducting body, are in simplest approximation equivalent to viscous fingering without regularization. Going beyond this approxima…
Compositions of Hot Super-Earth Atmospheres: exploring Kepler Candidates
Y. Miguel, L. Kaltenegger, B. Fegley +1
This paper outlines a simple approach to evaluate the atmospheric composition of hot rocky planets by assuming different types of planetary composition and using corresponding mode…
Chemistry of atmospheres formed during accretion of the Earth and other terrestrial planets
L. Schaefer, B. Fegley
We used chemical equilibrium and chemical kinetic calculations to model chemistry of the volatiles released by heating different types of carbonaceous, ordinary and enstatite chond…
The extreme physical properties of the CoRoT-7b super-Earth
A. Léger, O. Grasset, B. Fegley +23
The search for rocky exoplanets plays an important role in our quest for extra-terrestrial life. Here, we discuss the extreme physical properties possible for the first characteriz…
Redox evolution via gravitational differentiation on low mass planets: implications for abiotic oxygen, water loss and habitability
R. Wordsworth, L. Schaefer, R. Fischer
The oxidation of rocky planet surfaces and atmospheres, which arises from the twin forces of stellar nucleosynthesis and gravitational differentiation, is a universal process of ke…
Solubility of Rock in Steam Atmospheres of Planets
Bruce Fegley, Nathan S. Jacobson, K. B. Williams +3
Extensive experimental studies show all major rocky elements (Si, Mg, Fe, Ni, Ca, Al, Na, K) dissolve in steam to a greater or lesser extent. We use these results to compute chemic…