92 citations · 213 across the 15 of their papers we have counts for
16 papers
A Stellar-Type Dependence in the Rocky and Volatile Composition of Small Exoplanets
Ji Wang, Caroline Dorn, Komal Bali
We investigate the rocky and volatile composition of small exoplanets by modeling the population-level distribution of densities using a mixture framework that links interior struc…
Atmospheric diversity of sub-Neptunes from formation with rock, water, and soot
Caroline Dorn, Aaron Werlen, Sean Jordan
Recent JWST detections of CH4 and CO2 in sub-Neptune atmospheres point to a link between atmospheric composition and the nature of planetary building blocks - rock, water, or refra…
The Role of Formation Location in Shaping Sulfur-, Nitrogen-, and Carbon-Bearing Species in Super-Earth and Sub-Neptune Atmospheres
Aaron Werlen, Remo Burn, Caroline Dorn +2
Atmospheric compositions of sub-Neptunes and super-Earths are often interpreted as tracers of formation location relative to volatile ice lines. However, prolonged magma oceans can…
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…
Densities of small planets around the M dwarfs TOI-4336 A and TOI-4342 with ESPRESSO: Three sub-Neptunes, one super-Earth, and a Neptune-mass candidate
Léna Parc, Charles Cadieux, Nolan Grieves +27
We present the characterization of two planetary systems orbiting the M dwarfs TOI-4336 A (M3.5V) and TOI-4342 (M0V), each hosting two transiting planets previously validated with…
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…
Oxygen left behind: Atmospheric Enrichment due to Fractionation in Sub-Neptunes using BOREAS
Marilina Valatsou, Caroline Dorn, Pierlou Marty +1
The evolution of exoplanetary atmospheres is strongly influenced by atmospheric escape, particularly for close-in planets. Fractionation during atmospheric loss can preferentially…
Coupled Thermal-Chemical Evolution Models of Sub-Neptunes Reveal Atmospheric Signatures of Their Formation Location
Marie-Luise Steinmeyer, Caroline Dorn, Aaron Werlen +1
The observed masses and radii of sub-Neptunes are typically explained by the gas dwarf and the water world scenarios. While their evolutionary history on a population level has bee…
Surrogate-Accelerated Bayesian Inversion for Exoplanet Interior Characterization
Tijn De Wringer, Caroline Dorn, Emily O. Garvin +1
Characterizing the interior structure of exoplanets is an inverse problem often solved using Bayesian inference, but this approach is hampered by the high computational cost of pla…
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…
Mineral cloud formation above magma oceans in sub-Neptune atmospheres
Elspeth K. H. Lee, Aaron Werlen, Caroline Dorn
The potential presence of a magma surface below a thick atmosphere primarily composed of hydrogen in some sub-Neptune exoplanets suggests a strong link between the interior composi…
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…
Water-rich sub-Neptunes and rocky super Earths around different Stars: Radii shaped by Volatile Partitioning, Formation, and Evolution
Remo Burn, Komal Bali, Caroline Dorn +2
The nature of sub-Neptunes remains unknown due to degeneracies in interior structure solutions. However, a statistical set of small planets with measured masses and radii can be us…
JWST/NIRISS reveals the water-rich "steam world" atmosphere of GJ 9827 d
Caroline Piaulet-Ghorayeb, Bjorn Benneke, Michael Radica +30
With sizable volatile envelopes but smaller radii than the solar system ice giants, sub-Neptunes have been revealed as one of the most common types of planet in the galaxy. While t…
Most Super-Earths Have Less Than 3% Water
James G. Rogers, Caroline Dorn, Vivasvaan Aditya Raj +2
Super-Earths are highly irradiated, small planets with bulk densities approximately consistent with Earth. We construct combined interior-atmosphere models of super-Earths that tra…
Majority of water hides deep in the interiors of exoplanets
Haiyang Luo, Caroline Dorn, Jie Deng
Water is an important component of exoplanets, with its distribution, i.e., whether at the surface or deep inside, fundamentally influencing the planetary properties. The distribut…