| Title: |
High Temperature Measurement of Acetylene UV Absorption Cross Section for the Study of Hot Exoplanet Atmospheres |
| Authors: |
Fleury, Benjamin; Poveda, Mathilde; Benilan, Yves; Venot, Olivia |
| 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); Maison de la Simulation (MDLS); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS); SF2A; ANR-21-CE49-0008,EXACT,Chimie Atmosphérique EXoplanétaire à haute Temperature(2021) |
| Source: |
SF2A-2023: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics ; Annual meeting of the French Society of Astronomy and Astrophysics ; https://hal.science/hal-04759347 ; Annual meeting of the French Society of Astronomy and Astrophysics, SF2A, Jun 2023, Strasbourg, France. p.377-380 |
| Publisher Information: |
CCSD |
| Publication Year: |
2023 |
| Collection: |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
| Subject Terms: |
Exoplanet atmospheres; laboratory astrophysics; techniques spectroscopic; planets and satellites: atmospheres; [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
| Subject Geographic: |
Strasbourg; France |
| Description: |
International audience ; The interpretation of exoplanet atmospheres' observations relies on the used of atmospheric models requiring fundamental physico-chemical data as inputs. To improve the accuracy of these models, it is therefore essential to obtain physico-chemical data in conditions relevant to the observed atmospheres. For this purpose, we have studied experimentally the thermal dependency of the ultraviolet (UV) absorption cross section of acetylene (C2H2) between 296 and 673 K. Our first results reveal that the absorption cross section of C2H2 increases with the temperature, the increase being more important at longer wavelengths (λ >∼180 nm) than at shorter ones. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://hal.science/hal-04759347; https://hal.science/hal-04759347v1/document; https://hal.science/hal-04759347v1/file/2023sf2a.conf.377F.pdf |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.81A7ECDC |
| Database: |
BASE |