J/MNRAS/440/1649ivo://CDS.VizieR/J/MNRAS/440/1649doi:10.26093/cds/vizier.74401649CDSYurchenko S.N.Tennyson J.2024-08-08T20:13:04Z2014-07-04T13:15:52ZCDS support team

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

cds-question@unistra.frinfrared-astronomyspectroscopyultraviolet-astronomyastronomical-modelsstellar-atmospheresA new hot line list is calculated for ^12^CH_4_ in its ground electronic state. This line list, called 10to10, contains 9.8 billion transitions and should be complete for temperatures up to 1500K. It covers the wavelengths longer than 1{mu}m and includes all transitions to upper states with energies below hc 18000cm^-1^ and rotational excitation up to J=39. The line list is computed using the eigenvalues and eigenfunctions of CH_4_ obtained by variational solution of the SCHR equation for the rotation-vibration motion of nuclei employing program TROVE and a new 'spectroscopic' potential energy surface (PES) obtained by refining an ab initio PES (CCSD(T)-F12c/aug-cc-pVQZ) in a least-squares fitting to the experimentally derived energies with J=0, 1, 2, 3, 4 as extracted from the HITRAN database. The dipole transition probabilities are represented by the Einstein-A coefficients obtained using a previously reported ab initio dipole moment surface (CCSD(T)-F12c/aug-cc-pVTZ). Detailed comparisons with other available sources of methane transitions including HITRAN, experimental compilations and other theoretical line lists show that these sources lack transitions both higher temperatures and near infrared wavelengths. The 10to10 line list is suitable for modelling atmospheres of cool stars and exoplanets.2014MNRAS.440.1649Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/440/1649CatalogResearchIsServedByTAP VizieR generic servicerelated-toVI/127 : High accuracy line list of HDO (Voronin+ 2009)VI/133 : A variationally computed hot NH3 line list - BYTeJ/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/437/1828 : ExoMol line list for HCN and HNC ((Barber+, 2014)J/MNRAS/442/1821 : ExoMol line list for NaCl and KCl (Barton+, 2014)J/MNRAS/445/1383 : ExoMol line list for PN (Yorke+, 2014)J/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/440/1649https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/440/1649http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/440/1649https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/440/1649https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/440/1649http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/440/1649GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVInfrareddefaultJ/MNRAS/440/1649/ch4_0-39Labelled rovibrational statesi[1/7819352] State IDmeta.idlongprimaryEState energy term value in cm-1cm**-1phys.energy;phys.atmol.leveldoubleg[2/395] Total state degeneracyphys.atmol.oscStrengthintJ[0/39] J-quantum number J$ is the total angular momentum excluding nuclear spinmeta.number;phys.atmol.sWeight.nuclearintG[1/5] Total symmetry in T_d_(M), {Gamma} = A_1_,A_2_,E,F_1_,F_2_phys.atmol.parityintn1[0/10] A_1_-symmetry normal mode quantum numberphys.atmol.qnintn2[0/20] E-symmetry normal mode quantum numberphys.atmol.qnintL2[0/20] L_2_ vib. angular momentum quantum numberphys.mol.qnintn3[0/10] F_1_-symmetry normal mode quantum numberphys.atmol.qnintL3[0/10] L_3_ vib. angular momentum quantum numberphys.mol.qnintM3[0/10] M_3_ Multiplicity index quantum numberphys.atmol.qnintn4[0/20] F_2_-symmetry normal mode quantum numberphys.atmol.qnintL4[0/20] L_4_ vib. angular momentum quantum numberphys.mol.qnintM4[0/20] M_4_ Multiplicity index quantum numberphys.atmol.qnintGv[1/5] T_d_(M) vi. symmetry Gamma(v) (local mode)phys.atmol.parityintJa[0/39] Total angular momentum quantum number, the same as J at 34-40phys.atmol.qnintK[0/39] Projection of J on axis of molec. symmetryphys.atmol.parityintPr[0/1] Rotational parity tau(rot)phys.atmol.parityintGr[1/5] T_d_(M) rot. symmetry Gamma(v) (local mode)phys.atmol.parityintN(Bl)[1/97054] Reference number in the blockmeta.id;meta.mainlongC2[0.0/1.0000] Square of the largest coefficientstat.fit.paramfloatv1[0/10] Local mode vibrational quantum numberphys.mol.qnintv2[0/10] Local mode vibrational quantum numberphys.mol.qnintv3[0/10] Local mode vibrational quantum numberphys.mol.qnintv4[0/10] Local mode vibrational quantum numberphys.mol.qnintv5[0/20] Local mode vibrational quantum numberphys.mol.qnintv6[0/20] Local mode vibrational quantum numberphys.mol.qnintv7[0/20] Local mode vibrational quantum numberphys.mol.qnintv8[0/20] Local mode vibrational quantum numberphys.mol.qnintv9[0/20] Local mode vibrational quantum numberphys.mol.qnint