J/MNRAS/437/1828ivo://CDS.VizieR/J/MNRAS/437/1828doi:10.26093/cds/vizier.74371828CDSBarber R.J.Strange J.K.Hill C.Polyansky O.L.Mellau G.,Yurchenko S.N.Tennyson J.2024-08-07T20:12:24Z2014-02-18T13:43:22ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsradio-astronomystellar-atmospheric-opacityA revised rotation-vibration line list for the combined hydrogen cynanide (HCN)/hydrogen isocyanide (HNC) system is presented. The line list uses ab initio transition intensities calculated previously (Harris et al., 2002ApJ...578..657H) and extensive datasets 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% lower predicted thermal population of HNC as a function of temperature in the key 2000 to 3000K region. Temperature-dependent partition functions and equilibrium constant 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.2014MNRAS.437.1828Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/437/1828CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/425/34 : ExoMol line lists for BeH, MgH and CaH (Yadin+, 2012)J/MNRAS/434/1469 : ExoMol line lists for SiO (Barton+, 2013)J/MNRAS/440/1649 : ExoMol line list for CH4 (Yurchenko+, 2014)J/MNRAS/442/1821 : ExoMol line list for NaCl and KCl (Barton+, 2014)J/MNRAS/445/1383 : ExoMol line list for PN (Yorke+, 2014J/MNRAS/446/2337 : ExoMol line list for PH3 (Sousa-Silva+, 2015)J/MNRAS/448/1704 : ExoMol line lists for H2CO (Al-Refaie+, 2015)J/MNRAS/449/3613 : ExoMol line lists for AlO (Patrascu+, 2015)J/MNRAS/451/5153 : ExoMol line lists for NaH and NaD (Rivlin+, 2015)http://www.exomol.com : ExoMol Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/437/1828https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/437/1828http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/437/1828https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/437/1828https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/437/1828http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/437/1828GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/MNRAS/437/1828/statesEnergy level list of HCN/HNCi[1/168110] State IDmeta.idintprimaryEState energycm**-1phys.energy;phys.atmol.leveldoublegtot[6/726] Total state degeneracy (1)phys.electron.degenintJ[0/60] Total angular momentum quantum number (excluding nuclear spin)phys.atmol.qnintpar[+/-] Total parity: '+' or '-'phys.atmol.paritycharkp[e/f] "Kronig" rotationless parity: 'e' or 'f'phys.atmol.paritychariso[0/1]? Isotopomer: iso=0 for HCN, iso=1 for HNC or - if unknownmeta.codeintnullablev1[0/3]? v1 vibrational quantum numberphys.mol.qnintnullablev2[0/14]? v2 vibrational quantum numberphys.mol.qnintnullablel2[0/13]? l2 vibrational angular momentum quantum numberphys.mol.qnintnullablev3[0/4]? v3 vibrational quantum numberphys.mol.qnintnullableJ/MNRAS/437/1828/transLine list of HCN/HNCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordinti1[2/168110] Upper state IDmeta.idinti0[1/168110] Lower state IDmeta.idintAEinstein A-factors**-1phys.atmol.transProbdoublenutransition wavenumbercm**-1phys.atmol.transProb;phys.atmol.transitiondoubleindexed