activity
20152026
most citedComparison of "warm and wet" and "cold and icy" scenarios for early Mars in a 3D climate model

223 citations · 338 across the 14 of their papers we have counts for

collaborators
Showing 2024Show all

6 papers · 1 filter

astro-ph.EP2024★ 18 cited

Convective shutdown in the atmospheres of lava worlds

Harrison Nicholls, Raymond T. Pierrehumbert, Tim Lichtenberg +2

Atmospheric energy transport is central to the cooling of primordial magma oceans. Theoretical studies of atmospheres on lava planets have assumed that convection is the only proce…

astro-ph.EP2024★ 6 cited

Novel Physics of Escaping Secondary Atmospheres May Shape the Cosmic Shoreline

Richard D. Chatterjee, Raymond T. Pierrehumbert

Recent James Webb Space Telescope observations of cool, rocky exoplanets reveal a probable lack of thick atmospheres, suggesting prevalent escape of the secondary atmospheres forme…

astro-ph.EP2024★ 29 cited

Magma ocean evolution at arbitrary redox state

Harrison Nicholls, Tim Lichtenberg, Dan J. Bower +1

Interactions between magma oceans and overlying atmospheres on young rocky planets leads to an evolving feedback of outgassing, greenhouse forcing, and mantle melt fraction. Previo…

astro-ph.EP2024★ 4 cited

3D Modeling of Moist Convective Inhibition in Idealized Sub-Neptune Atmospheres

Namrah Habib, Raymond T. Pierrehumbert

Atmospheric convection behaves differently in hydrogen-rich atmospheres compared to higher mean molecular weight atmospheres due to compositional gradients of tracers. Previous 1D…

astro-ph.EP2024★ 5 cited

Geodynamics of super-Earth GJ 486b

Tobias G. Meier, Dan J. Bower, Tim Lichtenberg +8

Many super-Earths are on very short orbits around their host star and, therefore, more likely to be tidally locked. Because this locking can lead to a strong contrast between the d…

astro-ph.EP2024★ 7 cited

Carbon cycle instability for high- exoplanets: Implications for habitability

R. J. Graham, R. T. Pierrehumbert

Implicit in the definition of the classical circumstellar habitable zone (HZ) is the hypothesis that the carbonate-silicate cycle can maintain clement climates on exoplanets with l…