Muted Features in the JWST NIRISS Transmission Spectrum of Hot Neptune LTT 9779b

Journal article

The ExoMol database (www.exomol.com) provides molecular data for spectroscopic studies of hot atmospheres. These data are widely used to model atmospheres of exoplanets, cool stars and other astronomical objects, as well as a variety of terrestrial applications. The 2024 data release reports the current status of the database which contains recommended line lists for 91 molecules and 224 isotopologues giving a total of almost 10$^{12}$ individual transitions. New features of the database include extensive "MARVELization" of line lists to allow them to be used for high resolutions studies, extension of several line lists to ultraviolet wavelengths, provision of photodissociation cross sections and extended provision of broadening parameters. Some of the in-house data specifications have been rewritten in JSON and moved to conformity with other international standards. Data products, including specific heats, a database of lifetimes for plasma studies, and the ExoMolHR web app which allows exclusively high resolution data to be extracted, are discussed

Authors: Radica, M; Coulombe, L-P; Taylor, J; Albert, L; Allart, R

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: American Astronomical Society
• Journal: The Astrophysical Journal Letters
• Volume: 962
• Issue: 1
• Pages: L20-L20
• Publication date: 2024-02-08
• DOI: 10.3847/2041-8213/ad20e4
• EISSN: 2041-8213
• ISSN: 2041-8205
• Language: English
• Keywords: Astrophysics; Neptune; Metallicity; Galaxy; Terminator (solar); Physics; Atmosphere (unit); Exoplanet; Astrobiology; Population; Meteorology; Planet; Astronomy