92 citations · 150 across the 7 of their papers we have counts for
8 papers
Escaping Helium and a Highly Muted Spectrum Suggest a Metal-Enriched Atmosphere on Sub-Neptune GJ3090b from JWST Transit Spectroscopy
Eva-Maria Ahrer, Michael Radica, Caroline Piaulet-Ghorayeb +27
Sub-Neptunes, the most common planet type, remain poorly understood. Their atmospheres are expected to be diverse, but their compositions are challenging to determine, even with JW…
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…
Volatile-rich Sub-Neptunes as Hydrothermal Worlds: The Case of K2-18 b
Cindy N. Luu, Xinting Yu, Christopher R. Glein +8
Temperate exoplanets between the sizes of Earth and Neptune, known as "sub-Neptunes", have emerged as intriguing targets for astrobiology. It is unknown whether these planets resem…
Biogenic sulfur gases as biosignatures on temperate sub-Neptune waterworlds
Shang-Min Tsai, Hamish Innes, Nicholas F. Wogan +1
Theoretical predictions and observational data indicate a class of sub-Neptune exoplanets may have water-rich interiors covered by hydrogen-dominated atmospheres. Provided suitable…
The Runaway Greenhouse Effect on Hycean Worlds
Hamish Innes, Shang-Min Tsai, Raymond T. Pierrehumbert
Hycean worlds are a proposed subset of sub-Neptune exoplanets with substantial water inventories, liquid surface oceans and extended hydrogen-dominated atmospheres that could be fa…
CAMEMBERT: A Mini-Neptunes GCM Intercomparison, Protocol Version 1.0. A CUISINES Model Intercomparison Project
Duncan A. Christie, Elspeth K. H. Lee, Hamish Innes +19
With an increased focus on the observing and modelling of mini-Neptunes, there comes a need to better understand the tools we use to model their atmospheres. In this paper, we pres…
Atmospheric dynamics of temperate sub-Neptunes. Part I: dry dynamics
Hamish Innes, Raymond T. Pierrehumbert
Sub-Neptunes (planets with radii between 2 and 4 R) are abundant around M-dwarf stars, yet the atmospheric dynamics of these planets is relatively unexplored. In this pa…
Inferring Shallow Surfaces on sub-Neptune Exoplanets with JWST
Shang-Min Tsai, Hamish Innes, Tim Lichtenberg +4
Planets smaller than Neptune and larger than Earth make up the majority of the discovered exoplanets. Those with H-rich atmospheres are prime targets for atmospheric characteri…