ExoMol line lists — XXXVIII. High-temperature molecular line list of silicon dioxide (SiO$_{\mathbf{2}}$) [EPA]

http://arxiv.org/abs/2005.13586


Silicon dioxide (SiO$_2$) is expected to occur in the atmospheres of hot rocky super-Earth exoplanets but a lack of spectroscopic data is hampering its possible detection. Here, we present the first, comprehensive molecular line list for SiO$_2$. The line list, named OYT3, covers the wavenumber range 0\,–\,6000~cm$^{-1}$ (wavelengths $\lambda > 1.67$~$\mu$m) and is suitable for temperatures up to $T=3000$~K. Almost 33 billion transitions involving 5.69 million rotation-vibration states with rotational excitation up to $J=255$ have been computed using robust first-principles methodologies. The OYT3 line list is available from the ExoMol database at this http URL

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A. Owens, E. Conway, J. Tennyson, et. al.
Fri, 29 May 20
17/75

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