372 citations · 9.2k across the 159 of their papers we have counts for
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Keys of a Mission to Uranus or Neptune, the Closest Ice Giants
Tristan Guillot, Jonathan Fortney, Emily Rauscher +26
Uranus and Neptune are the archetypes of "ice giants", a class of planets that may be among the most common in the Galaxy. They hold the keys to understand the atmospheric dynamics…
The cloudy shape of hot Jupiter thermal phase curves
Vivien Parmentier, Adam P. Showman, Jonathan J. Fortney
Hot Jupiters have been predicted to have a strong day/night temperature contrast and a hot spot shifted eastward of the substellar point. This was confirmed by numerous phase curve…
A Comprehensive Reanalysis of 's 4.5 m Phase Curves, and the Phase Variations of the Ultra-hot Jupiters MASCARA-1b and KELT-16b
Taylor J. Bell, Lisa Dang, Nicolas B. Cowan +12
We have developed an open-source pipeline for the analysis of \textit{Spitzer}/IRAC channel 1 and 2 time-series photometry, incorporating some of the most popular decorrelation met…
How Does Thermal Scattering Shape the Infrared Spectra of Cloudy Exoplanets? A Theoretical Framework and Consequences for Atmospheric Retrievals in the JWST era
Jake Taylor, Vivien Parmentier, Michael R. Line +3
Observational studies of exoplanets are suggestive of a ubiquitous presence of clouds. The current modelling techniques used in emission to account for the clouds tend to require p…
Atmospheric Dynamics of Hot Giant Planets and Brown Dwarfs
Adam P. Showman, Xianyu Tan, Vivien Parmentier
Ground-based and spacecraft telescopic observations, combined with an intensive modeling effort, have greatly enhanced our understanding of hot giant planets and brown dwarfs over…
A transition between the hot and the ultra-hot Jupiter atmospheres
Claire Baxter, Jean-Michel Désert, Vivien Parmentier +6
[Abridged] A key hypothesis in the field of exoplanet atmospheres is the trend of atmospheric thermal structure with planetary equilibrium temperature. We explore this trend and re…
Mineral cloud and hydrocarbon haze particles in the atmosphere of the hot Jupiter JWST target WASP-43b
Ch. Helling, Y. Kawashima, V. Graham +5
Having a short orbital period and being tidally locked makes WASP-43b an ideal candidate for JWST observations. Phase curve observations of an entire orbit will enable the mapping…
Strong biases in retrieved atmospheric composition caused by strong day-night chemical heterogeneities
William Pluriel, Tiziano Zingales, Jérémy Leconte +1
Most planets currently amenable to transit spectroscopy are close enough to their host star to exhibit a relatively strong day to night temperature gradient. For hot planets, this…
Understanding and Mitigating Biases when Studying Inhomogeneous Emission Spectra with JWST
Jake Taylor, Vivien Parmentier, Patrick G. J. Irwin +3
Exoplanet emission spectra are often modelled assuming that the hemisphere observed is well represented by a horizontally homogenised atmosphere. However this approximation will li…
Global Chemistry and Thermal Structure Models for the Hot Jupiter WASP-43b and Predictions for JWST
Olivia Venot, Vivien Parmentier, Jasmina Blecic +17
The James Webb Space Telescope (JWST) is expected to revolutionize the field of exoplanets. The broad wavelength coverage and the high sensitivity of its instruments will allow cha…
Understanding the atmospheric properties and chemical composition of the ultra-hot Jupiter HAT-P-7b II. Mapping the effects of gas kinetics
Karan Molaverdikhani, Christiane Helling, Ben W. P. Lew +5
The atmospheres of ultra-hot Jupiters are commonly considered to be at thermochemical equilibrium. We aim to provide disequilibrium chemistry maps for a global understanding of the…