works on

From the 1 of 15 linked papers with an AI index.

activity
20242026
collaborators

15 papers

astro-ph.EP2026

Reflation: redox-driven atmospheric inflation as tracer of super-Earth geochemistry

Lorenzo Cesario, Tim Lichtenberg, Mara Attia +3

The paper proposes that the redox state of a super‑Earth’s mantle can cause a temporary re‑inflation of its atmosphere by shifting outgassed volatiles from carbon‑rich to hydrogen‑…

astro-ph.EP2026

A JWST Transit of a Jupiter Analog: II. A Search for Exomoons

David Kipping, Ben Cassese, Quentin Changeat +3

We present a search for exomoons around the Jupiter-like exoplanet Kepler-167e using a NIRSpec JWST transit. Our 60 hour time series clearly reveals the enormous impact of long-ter…

astro-ph.EP2026

Coupling magma-ocean and atmospheres in spectral retrievals of sub-Neptunes

Yuichi Ito, Quentin Changeat

Recent high-precision atmospheric observations with JWST is enabling detailed characterization of sub-Neptune atmospheres and motivating efforts to understand and constrain their i…

astro-ph.EP2026

A test of the Dedalus software for exoplanet atmospheric dynamics

Rick Bonhof, Quentin Changeat, James Y-K. Cho

Studying exoplanet flow and variability requires solving atmospheric dynamics equations accurately. Here we use the shallow-water equations to evaluate and employ Dedalus3, a spect…

astro-ph.IM2026

On the synergetic use of Ariel and JWST for exoplanet atmospheric science

Quentin Changeat, Pierre-Olivier Lagage, Giovanna Tinetti +27

This paper explores the potential for strategic synergies between the JWST and the Ariel telescopes, two flagship observatories poised to revolutionise the study of exoplanet atmos…

astro-ph.EP2026

Pre-computed aerosol extinction, scattering and asymmetry grids for scalable atmospheric retrievals

Maël M. Voyer, Quentin Changeat

The unprecedented wavelength coverage and sensitivity of the James Webb Space Telescope (JWST) permits to measure the absorption features of a wide range of condensate species from…