J/ApJ/757/46ivo://CDS.VizieR/J/ApJ/757/46doi:10.26093/cds/vizier.17570046CDSHargreaves R.J.Beale C.A.Michaux L.Irfan M.Bernath P.F.2014-07-16T17:51:01Z2014-07-02T09:20:59ZCDS support team

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

cds-question@unistra.fratomic-physicsspectroscopyinfrared-astronomyWe present comprehensive experimental line lists of methane (CH_4_) at high temperatures obtained by recording Fourier transform infrared emission spectra. Calibrated line lists are presented for the temperatures 300-1400{deg}C at twelve 100{deg}C intervals spanning the 960-5000/cm (2.0-10.4{mu}m) region of the infrared. This range encompasses the dyad, pentad, and octad regions, i.e., all fundamental vibrational modes along with a number of combination, overtone and hot bands. Using our CH_4_ spectra, we have estimated empirical lower state energies (E_low_ in cm^-1^) and our values have been incorporated into the line lists along with line positions ({nu} in cm^-1^) and calibrated line intensities (S' in cm/molecule). We expect our hot CH_4_ line lists to find direct application in the modeling of planetary atmospheres and brown dwarfs.2012ApJ...757...46Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/757/46CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/735/111 : NH_3_ line lists at high temperatures (Hargreaves+, 2011)J/ApJ/714/476 : Complete spectrum of ethyl cyanide (Fortman+, 2010)J/ApJ/708/1452 : Quadratic F_ij_ force field in l-CH_4_^-^ (Senent+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/757/46https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/757/46http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/757/46https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/757/46https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/757/46http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/757/46GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/ApJ/757/46/table6Line list summary (from erratum 2013, ApJ, 774, 89)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT[300/1400] Temperature ({deg}C) (12values, step of 100{deg}C)degCphys.temperatureintNobs[3255/39485] Number of observed linesmeta.numberintNadd[9120/39613] Number of added HITRAN linesmeta.numberintNtot[12375/79098] Total linesmeta.numberintJ/ApJ/757/46/table8The hot CH_4_ line list (from erratum 2013, ApJ, 774, 89)QQuality factor (1)arith.factorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT[300/1400] Temperature ({deg}C) (12values, step of 100{deg}C)degphys.temperatureintsigma[968/4860] Wavenumber {sigma}cm**-1em.wavenumberdoubleindexedIntIntensity in units of cm/moleculecmspect.line.intensitydoubleindexedElow[0/18133]? Empirical lower state energycm**-1phys.energydoublenullable