Vivien Parmentier
Université Côte d'Azur, Nice, France

Abstract
With more than 25% of the JWST time dedicated to the study of exoplanets, the quest to understand their atmospheres is accelerating really fast. By studying the spectra from their atmospheres, we aim at determining more precisely how, where and when they formed. However, to precisely measure their chemical composition, a holistic understanding of their complex atmospheres is needed. The task is particularly difficult because only spatially averaged spectra can be measured when planetary atmospheres are intrinsically 3D.
I will present the most recent advances in exoplanet atmosphere observations, both from JWST and from ground-based large telescopes. I will show how the 3D structure of exoplanet atmospheres can be extracted from these observations together with more accurate atmospheric abundance. I will discuss the perspective opened by JWST and E-ELTs for observing cooler planets and bridge the gap with solar-system observations.

2023 May 31, 13:30

IA/U.Porto
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto