| Title: |
Chemical characterisation of warm exoplanetary atmospheres: revelations from JWST about WASP-39b and much more |
| Authors: |
Venot, Olivia; Tsai, Shang-Min; Veillet, Roméo; Fleury, Benjamin; Poveda, Mathilde |
| Contributors: |
Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Department of Physics Oxford; University of Oxford; Department of Earth and Planetary Sciences Univ California Davis (EPS - UC Davis); University of California Davis (UC Davis); University of California (UC)-University of California (UC); ANR-21-CE49-0008,EXACT,Chimie Atmosphérique EXoplanétaire à haute Temperature(2021) |
| Source: |
SF2A 2023 : Annual meeting of the French Society of Astronomy and Astrophysics ; https://hal.science/hal-04759552 ; SF2A 2023 : Annual meeting of the French Society of Astronomy and Astrophysics, Jun 2023, Strasbourg, France. pp.357-361 |
| Publisher Information: |
CCSD |
| Publication Year: |
2023 |
| Subject Terms: |
planets and satellites; stars planetary systems; atmosphere; astrochemistry; techniques spectroscopic; [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
| Subject Geographic: |
Strasbourg; France |
| Description: |
International audience ; The first observations of WASP-39b by JWST permitted important discoveries concerning exoplanetary atmospheres. With this single target, JWST detected for the first time carbon dioxide, but also sulfur dioxide. Importantly, this latter detection (and its analysis) permitted to obtain the first evidence of photochemical processes in an exoplanet atmosphere. In this context, the EXACT project is particularly timely as it will provide physico-chemical data validated at high temperature enabling reliable modelling of warm exoplanet atmospheres. Such data are mandatory to analyse future data from the next generation of instruments. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://hal.science/hal-04759552; https://hal.science/hal-04759552v1/document; https://hal.science/hal-04759552v1/file/2023sf2a.conf.357V.pdf |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.22FA29C5 |
| Database: |
BASE |