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\documentclass[11pt]{article}

\usepackage{hrms}  %% Page settings, style ... for the HRMS abstract book.

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\title{HYPERFINE-RESOLVED SPECTROSCOPIC MODEL AND HIGH-RESOLUTION LINE LIST FOR VANADIUM MONOXIDE ($^{51}$V$^{16}$O)}

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\author{\underline{\FirstName C.~A. \LastName BOWESMAN},
  \FirstName S.~N. \LastName YURCHENKO,
  \FirstName J. \LastName TENNYSON}
\address{Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK}

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\usepackage{fancyhdr}
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\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
  Aug. 28 - Sept. 1, 2023}}}
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\usepackage[colorlinks=true,urlcolor=blue,linkcolor=blue,citecolor=blue]{hyperref}
\voffset -.65 cm

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\category {8,9}
\begin{document}

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Vanadium monoxide ($^{51}$V$^{16}$O) is believed to play an important role in the atmospheres of hot-Jupiters, but high-resolution studies have so far failed to detect it, at least in part because of the inaccuracy of 
available line lists.\footnote{\href{https://doi.org/10.3847/1538-3881/acb7e2}{de Regt \textit{et al.}, Astron. Astrophys., 165, 157 (2023)}} It is likely that the large hyperfine splittings in the spectra of VO, arising from the large nuclear spin $I = \frac{7}{2}$ of the $^{51}$V atom, has contributed to the non-detections with the current hyperfine-unresolved VOMYT line list\footnote{\href{https://doi.org/10.1093/mnras/stw1969}{McKemmish \textit{et al.}, Mon. Not. R.
Astron. Soc., 463, 771 (2016)}}.
To rectify this, a fully hyperfine-resolved spectroscopic model has been constructed which includes 15 low-lying electronic states (6 quartets and 9 doublets) of VO with the inclusion of hyperfine couplings based on use of the new,
hyperfine-resolved version of the diatomic variational nuclear motion program \textsc{Duo}.\footnote{\href{https://doi.org/10.1021/acs.jctc.1c01244}{Qu, Yurchenko and Tennyson, J. Chem. Theory Comput., 18, 1808 (2022)}}

The new spectroscopic model is refined against empirical \textsc{MARVEL} energies derived from experimental transitions,\footnote{\href{https://doi.org/10.1016/j.jqsrt.2022.108295}{Bowesman \textit{et al.}, J. Quant. Spectrosc. Radiat. Transf., 289, 108295 (2022)}} and hyperfine couplings are fit for the 3 electronic states for which hyperfine effects have been resolved in lab spectra.
The new line list comprises over 4 million energy level and 80 billion transitions and is made available via \href{https://www.exomol.com}{www.exomol.com}.

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