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ExoMol line lists - III. An improved hot rotation-vibration line list for HCN and HNC

Barber, RJ; Strange, JK; Hill, C; Polyansky, OL; Mellau, GC; Yurchenko, SN; Tennyson, J; (2014) ExoMol line lists - III. An improved hot rotation-vibration line list for HCN and HNC. Monthly Notices of the Royal Astronomical Society , 437 (2) 1828 - 1835. 10.1093/mnras/stt2011. Green open access

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Abstract

A revised rotation-vibration line list for the combined hydrogen cyanide (HCN)/hydrogen isocyanide (HNC) system is presented. The line list uses ab initio transition intensities calculated previously and extensive data sets of recently measured experimental energy levels. The resulting line list has significantly more accurate wavelengths than previous ones for these systems. An improved value for the separation between HCN and HNC is adopted, leading to an approximately 25 per cent lower predicted thermal population of HNC as a function of temperature in the key 2000 to 3000 K region. Temperature-dependent partition functions and equilibrium constants are presented. The line lists are validated by comparison with laboratory spectra and are presented in full as supplementary data to the article and at www.exomol.com.

Type: Article
Title: ExoMol line lists - III. An improved hot rotation-vibration line list for HCN and HNC
Open access status: An open access version is available from UCL Discovery
DOI: 10.1093/mnras/stt2011
Publisher version: http://dx.doi.org/10.1093/mnras/stt2011
Language: English
Additional information: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
Keywords: Molecular data, Opacity, Astronomical data bases, planets and satellites,atmospheres, low-mass stars
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.ucl.ac.uk/id/eprint/1415009
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