Bowesman, CA;
Yurchenko, SN;
Tennyson, J;
(2023)
A hyperfine-resolved spectroscopic model for vanadium monoxide (51V16O).
Molecular Physics
10.1080/00268976.2023.2255299.
(In press).
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Abstract
Vanadium monoxide ((Formula presented.) V (Formula presented.) 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 lists. It is likely that the large hyperfine splittings in the spectra of VO, arising from the large nuclear spin (Formula presented.) of the (Formula presented.) V atom, has contributed to the non-detections with the current hyperfine-unresolved VOMYT line list. To aid in the production of a new line list, 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 programme Duo. The new spectroscopic model is refined against empirical Marvel energies derived from experimental transitions, and hyperfine couplings are fit for the 3 electronic states for which hyperfine effects have been resolved in lab spectra. This model is used to assign some previously identified perturbations.
| Type: | Article |
|---|---|
| Title: | A hyperfine-resolved spectroscopic model for vanadium monoxide (51V16O) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1080/00268976.2023.2255299 |
| Publisher version: | https://doi.org/10.1080/00268976.2023.2255299 |
| Language: | English |
| Additional information: | © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent. |
| Keywords: | Hyperfine coupling; variational nuclear motion; spectroscopy; potential energy curves; vanadium monoxide |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10177026 |
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