High-temperature measurements of VUV-absorption cross sections of CO2and their application to exoplanets

2013/02/08 by O. Venot, Olivia Venot, N. Fray +15 · 1 citation
Physics and Astronomy · #Absorption (acoustics) #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Atmosphere (unit) #Exoplanet #Photodissociation #Population #Spectroscopy #Stellar, planetary, and galactic studies #Transit (satellite) #Ultraviolet #astro-ph.EP

paper · pdf · doi:10.1051/0004-6361/201220945

9 pages, 12 figures

openalex publication_date 2013/02/08 · arxiv created 2013/02/12 · arxiv updated 2013/02/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. Ultraviolet (UV) absorption cross sections are an essential ingredient of photochemical atmosphere models. Exoplanet searches have unveiled a large population of short-period objects with hot atmospheres, very different from what we find in our solar system. Transiting exoplanets whose atmospheres can now be studied by transit spectroscopy receive extremely strong UV fluxes and have typical temperatures ranging from 400 to 2500 K. At these temperatures, UV photolysis cross section data are severely lacking.

Citations

• WATER, METHANE, AND CARBON DIOXIDE PRESENT IN THE DAYSIDE SPECTRUM OF THE EXOPLANET HD 209458b
• ATMOSPHERIC CIRCULATION OF ECCENTRIC HOT NEPTUNE GJ436b
• THE LICK-CARNEGIE SURVEY: FOUR NEW EXOPLANET CANDIDATES
• Infrared Transmission Spectra for Extrasolar Giant Planets
• A chemical model for the atmosphere of hot Jupiters
• HIGH METALLICITY AND NON-EQUILIBRIUM CHEMISTRY IN THE DAYSIDE ATMOSPHERE OF HOT-NEPTUNE GJ 436b
• The HARPS search for southern extra-solar planets
• The HARPS search for southern extra-solar planets

Cited by

• Exoplanetary Atmospheres—Chemistry, Formation Conditions, and Habitability