223 citations · 338 across the 14 of their papers we have counts for
15 papers
Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
Mariana Sastre, Tim Lichtenberg, Lisa Dang +22
Ultra-short-period (USP) rocky exoplanets can have dayside temperatures high enough to maintain permanent magma oceans, sitting at the intersection of interior geophysics and atmos…
A Highly Reflective Atmosphere on the Lava World TOI-561b Revealed by JWST/NIRSpec Phase Curve
Samuel Boucher, Lisa Dang, Alex McGinty +15
Ultra-short period (USP) rocky planets are expected to be depleted of any substantial gaseous envelope due to the intense irradiation they receive from their host star, making the…
A Thick Volatile Atmosphere on the Ultrahot Super-Earth TOI-561 b
Johanna K. Teske, Nicole L. Wallack, Anjali A. A. Piette +10
Ultrashort-period (USP) exoplanets -- with R and periods 1 day -- are expected to be stripped of volatile atmospheres by intense host star irradiation…
Volatile-rich evolution of molten super-Earth L 98-59 d
Harrison Nicholls, Tim Lichtenberg, Richard D. Chatterjee +3
Small low-density exoplanets are sculpted by strong stellar irradiation, but their primordial compositions and subsequent evolution are still unknown. Two often-considered scenario…
On the relative humidity of the atmosphere
Raymond T. Pierrehumbert, Helene Brogniez, Remy Roca
Water vapour is highly subsaturated in much of the Earth's atmosphere. This has important consequences for water vapour feedback, and also for general phenomena such as the runaway…
Self-limited tidal heating and prolonged magma oceans in the L 98-59 system
Harrison Nicholls, Claire Marie Guimond, Hamish C. F. C. Hay +3
Rocky exoplanets accessible to characterisation often lie on close-in orbits where tidal heating within their interiors is significant, with the L 98-59 planetary system being a pr…
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…
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…
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…
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…
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…
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…
Modelling Non-Condensing Compositional Convection for Applications to Super-Earth and Sub-Neptune Atmospheres
Namrah Habib, Raymond T. Pierrehumbert
Compositional convection is atmospheric mixing driven by density variations caused by compositional gradients. Previous studies have suggested that compositional gradients of atmos…
A Mini-Chemical Scheme with Net Reactions for 3D GCMs I.: Thermochemical Kinetics
Shang-Min Tsai, Elspeth K. H. Lee, Raymond Pierrehumbert
Growing evidence has indicated that the global composition distribution plays an indisputable role in interpreting observational data. 3D general circulation models (GCMs) with a r…
Comparison of "warm and wet" and "cold and icy" scenarios for early Mars in a 3D climate model
Robin D. Wordsworth, Laura Kerber, Raymond T. Pierrehumbert +2
We use a 3D general circulation model to compare the primitive Martian hydrological cycle in "warm and wet" and "cold and icy" scenarios. In the warm and wet scenario, an anomalous…