Volume 646, February 2021
|Number of page(s)||19|
|Section||Atomic, molecular, and nuclear data|
|Published online||02 February 2021|
The ExoMolOP database: Cross sections and k-tables for molecules of interest in high-temperature exoplanet atmospheres⋆
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584, CA, Utrecht, The Netherlands
2 Department of Physics and Astronomy, University College London, London WC1E 6BT, UK
3 Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
4 Astrophysics Group, School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, UK
Accepted: 28 August 2020
Here we present a publicly available database of opacities for molecules of astrophysical interest named ExoMolOP that has been compiled for over 80 species, and is based on the latest line list data from the ExoMol, HITEMP, and MoLLIST databases. These data are generally suitable for characterising high-temperature exoplanet or cool stellar and substellar atmospheres, and have been computed at a variety of pressures and temperatures, with a few molecules included at room temperature only from the HITRAN database. The data are formatted in different ways for four different exoplanet atmosphere retrieval codes; ARCiS, TauREx, NEMESIS, and petitRADTRANS, and include both cross sections (at R = λ/Δλ = 15000) and k-tables (at R = λ/Δλ = 1000) for the 0.3–50 μm wavelength region. Opacity files can be downloaded and used directly for these codes. Atomic data for alkali metals Na and K are also included, using data from the NIST database and the latest line shapes for the resonance lines. Broadening parameters have been taken from the literature where available, or have been estimated from the parameters of a known molecule with similar molecular properties where no broadening data are available.
Key words: molecular data / opacity / radiative transfer / planets and satellites: atmospheres / planets and satellites: gaseous planets / infrared: planetary systems
The data are available from www.exomol.com.
© ESO 2021
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