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  Accurate prediction of H3O+ and D3O+ sensitivity coefficients to probe a variable proton-to-electron mass ratio

Owens, A., Yurchenko, S. N., Polyansky, O. L., Ovsyannikov, R. I., Thiel, W., & Špirko, V. (2015). Accurate prediction of H3O+ and D3O+ sensitivity coefficients to probe a variable proton-to-electron mass ratio. Monthly Notices of the Royal Astronomical Society, 454(3), 2292-2298. doi:10.1093/mnras/stv2023.

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supp_accurate_probes_h3op.rev1.pdf (Supplementary material), 240KB
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supp_accurate_probes_h3op.rev1.pdf
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 Creators:
Owens, Alec1, 2, Author              
Yurchenko, Sergei N.2, Author
Polyansky, O. L.2, Author
Ovsyannikov, R. I.3, Author
Thiel, Walter1, Author              
Špirko, V.4, 5, Author
Affiliations:
1Research Department Thiel, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445590              
2Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London, United Kingdom, ou_persistent22              
3Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia , ou_persistent22              
4Academy of Sciences of the Czech Republic, Institute of Organic Chemistry and Biochemistry, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic, ou_persistent22              
5Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, CZ-12116 Prague 2, Czech Republic, ou_persistent22              

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Free keywords: molecular data; cosmological parameters; infrared: ISM; submillimetre: ISM
 Abstract: The mass sensitivity of the vibration–rotation–inversion transitions of H316O+, H318O+, and D316O+ is investigated variationally using the nuclear motion program TROVE (Yurchenko, Thiel & Jensen). The calculations utilize new high-level ab initio potential energy and dipole moment surfaces. Along with the mass dependence, frequency data and Einstein A coefficients are computed for all transitions probed. Particular attention is paid to the Δ|k| = 3 and Δ|k − l| = 3 transitions comprising the accidentally coinciding |J, K = 0, v2 = 0+〉 and |J, K = 3, v2 = 0〉 rotation–inversion energy levels. The newly computed probes exhibit sensitivities comparable to their ammonia and methanol counterparts, thus demonstrating their potential for testing the cosmological stability of the proton-to-electron mass ratio. The theoretical TROVE results are in close agreement with sensitivities obtained using the non-rigid and rigid inverter approximate models, confirming that the ab initio theory used in the present study is adequate.

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Language(s): eng - English
 Dates: 2015-08-212015-07-202015-08-282015-05-122015-12-11
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnras/stv2023
 Degree: -

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Title: Monthly Notices of the Royal Astronomical Society
  Abbreviation : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 454 (3) Sequence Number: - Start / End Page: 2292 - 2298 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150