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Open AccessFeature PaperArticle

The ExoMol Atlas of Molecular Opacities

Department of Physics and Astronomy, University College London, London WC1E 6BT, UK
Author to whom correspondence should be addressed.
Atoms 2018, 6(2), 26;
Received: 25 February 2018 / Revised: 3 May 2018 / Accepted: 4 May 2018 / Published: 10 May 2018
(This article belongs to the Special Issue Atomic and Molecular Opacity Data for Astrophysics)
The ExoMol project is dedicated to providing molecular line lists for exoplanet and other hot atmospheres. The ExoMol procedure uses a mixture of ab initio calculations and available laboratory data. The actual line lists are generated using variational nuclear motion calculations. These line lists form the input for opacity models for cool stars and brown dwarfs as well as for radiative transport models involving exoplanets. This paper is a collection of molecular opacities for 52 molecules (130 isotopologues) at two reference temperatures, 300 K and 2000 K, using line lists from the ExoMol database. So far, ExoMol line lists have been generated for about 30 key molecular species. Other line lists are taken from external sources or from our work predating the ExoMol project. An overview of the line lists generated by ExoMol thus far is presented and used to evaluate further molecular data needs. Other line lists are also considered. The requirement for completeness within a line list is emphasized and needs for further line lists discussed. View Full-Text
Keywords: exoplanets; brown stars; cool stars; opacity; molecular spectra; ExoMol exoplanets; brown stars; cool stars; opacity; molecular spectra; ExoMol
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Tennyson, J.; Yurchenko, S.N. The ExoMol Atlas of Molecular Opacities. Atoms 2018, 6, 26.

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