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Publication Detail
ExoMol line lists – XLI. High-temperature molecular line lists for the alkali metal hydroxides KOH and NaOH
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Owens A, Tennyson J, Yurchenko SN
  • Publisher:
    Oxford University Press (OUP)
  • Publication date:
    01/03/2021
  • Pagination:
    1128, 1135
  • Journal:
    Monthly Notices of the Royal Astronomical Society
  • Volume:
    502
  • Issue:
    1
  • Status:
    Published
  • Print ISSN:
    0035-8711
  • Language:
    en
Abstract
ABSTRACT Potassium hydroxide (KOH) and sodium hydroxide (NaOH) are expected to occur in the atmospheres of hot rocky super-Earth exoplanets but a lack of spectroscopic data is hampering their potential detection. Using robust first-principles methodologies, comprehensive molecular line lists for KOH and NaOH that are applicable for temperatures up to T = 3500 K are presented. The KOH OYT4 line list covers the 0–6000 cm−1 (wavelengths λ > 1.67 µm) range and comprises 38 billion transitions between 7.3 million energy levels with rotational excitation up to J = 255. The NaOH OYT5 line list covers the 0–9000 cm−1 (wavelengths λ > 1.11 µm) range and contains almost 50 billion lines involving 7.9 million molecular states with rotational excitation up to J = 206. The OYT4 and OYT5 line lists are available from the ExoMol database at www.exomol.com and should greatly aid the study of hot rocky exoplanets.
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