6 papers
A Systematic Search for Trace Molecules in the Atmosphere of Exoplanet K2-18 b
Lorenzo Pica-Ciamarra, Nikku Madhusudhan, Gregory J. Cooke +2
The first transmission spectrum of the habitable-zone sub-Neptune K2-18 b with JWST has opened a new avenue for atmospheric characterisation of temperate low-mass exoplanets. The o…
Ground-based Atmospheric Characterization of Super-Earth L 98-59 d at High Spectral Resolution
Connor J. Cheverall, Nikku Madhusudhan, Savvas Constantinou +1
Atmospheric characterization of exoplanets using ground-based high-resolution transmission spectroscopy has traditionally focussed on large and close-in planets, such as hot Jupite…
The atmospheric composition of TOI-270 d
Savvas Constantinou, Nikku Madhusudhan, MÃ¥ns Holmberg
The first explorations of temperate sub-Neptune exoplanets have been the hallmark of early JWST observations. The bulk properties of such planets are consistent with a range of pos…
Exploring the Sub-Neptune Frontier with JWST
Nikku Madhusudhan, MÃ¥ns Holmberg, Savvas Constantinou +1
Sub-Neptune planets, with sizes and masses between those of Earth and Neptune, dominate the exoplanet population. Sub-Neptunes are expected to be the most diverse family of the exo…
A water-rich interior in the temperate sub-Neptune K2-18 b revealed by JWST
Renyu Hu, Aaron Bello-Arufe, Armen Tokadjian +7
Temperate sub-Neptunes are compelling targets for detecting liquid-water oceans beyond the Solar System. If water-rich and lacking massive hydrogen-helium envelopes, these planets…
New Constraints on DMS and DMDS in the Atmosphere of K2-18 b from JWST MIRI
Nikku Madhusudhan, Savvas Constantinou, MÃ¥ns Holmberg +3
The sub-Neptune frontier has opened a new window into the rich diversity of planetary environments beyond the solar system. The possibility of hycean worlds, with planet-wide ocean…