activity
20192026
most citedEarly Release Science of the Exoplanet WASP-39b with JWST NIRSpec G395H

274 citations · 359 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.EP2026

Inhomogeneous Cloud Coverage and Altitude-Dependent Heat Transport on the Hot-Jupiter NGTS-10 Ab from its Optical-to-Infrared Phase Curve

Louis-Philippe Coulombe, Vivien Parmentier, Kevin B. Stevenson +15

Hot-Jupiters, gas giant planets with equilibrium temperatures above 1,000 K, host large temperature gradients between their permanent day- and nightsides, resulting in circulation…

astro-ph.EP2026★ 1 cited

Horizontal transport as a source of disequilibrium chemistry on the nightside of a hot exoplanet

Vivien Parmentier, Kevin B. Stevenson, Luis Welbanks +15

Hot Jupiters have temperature gradients of several hundreds of degrees between their permanent day and nightsides. In equilibrium, the primary carbon reservoir is expected to trans…

astro-ph.EP2024

JWST/NIRISS and HST: Exploring the improved ability to characterise exoplanet atmospheres in the JWST era

Chloe Fisher, Jake Taylor, Vivien Parmentier +6

The Hubble Space Telescope has been a pioneering instrument for studying the atmospheres of exoplanets, specifically its WFC3 and STIS instruments. With the launch of JWST, we are…

astro-ph.EP2024★ 2 cited

Reliable Detections of Atmospheres on Rocky Exoplanets with Photometric JWST Phase Curves

Mark Hammond, Claire Marie Guimond, Tim Lichtenberg +9

The prevalence of atmospheres on rocky planets is one of the major questions in exoplanet astronomy, but there are currently no published unambiguous detections of atmospheres on a…

astro-ph.EP2024

Simultaneous retrieval of orbital phase resolved JWST/MIRI emission spectra of the hot Jupiter WASP-43b: evidence of water, ammonia and carbon monoxide

Jingxuan Yang, Mark Hammond, Anjali A. A. Piette +14

Spectroscopic phase curves of hot Jupiters measure their emission spectra at multiple orbital phases, thus enabling detailed characterisation of their atmospheres. Precise constrai…

astro-ph.EP2024

Identifying and Fitting Eclipse Maps of Exoplanets with Cross-Validation

Mark Hammond, Neil T. Lewis, Sasha Boone +10

Eclipse mapping uses the shape of the eclipse of an exoplanet to measure its two-dimensional structure. Light curves are mostly composed of longitudinal information, with the latit…

astro-ph.EP2022★ 274 cited

Early Release Science of the Exoplanet WASP-39b with JWST NIRSpec G395H

Lili Alderson, Hannah R. Wakeford, Munazza K. Alam +89

Measuring the abundances of carbon and oxygen in exoplanet atmospheres is considered a crucial avenue for unlocking the formation and evolution of exoplanetary systems. Access to a…

astro-ph.EP2019★ 82 cited

2.5-D retrieval of atmospheric properties from exoplanet phase curves: Application to WASP-43b observations

Patrick G. J. Irwin, Vivien Parmentier, Jake Taylor +4

We present a novel retrieval technique that attempts to model phase curve observations of exoplanets more realistically and reliably, which we call the 2.5-dimension (2.5-D) approa…