J/ApJS/231/19ivo://CDS.VizieR/J/ApJS/231/19doi:10.26093/cds/vizier.22310019CDSSaloman E.B.Kramida A.2017-11-06T14:07:37Z2017-10-10T15:11:00ZCDS support team

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

cds-question@unistra.fratomic-physicsThe energy levels, observed spectral lines, and transition probabilities of singly ionized vanadium, V II, have been compiled. The experimentally derived energy levels belong to the configurations 3d^4^, 3d^3^ns (n=4,5,6), 3d^3^np, and 3d^3^nd (n=4,5), 3d^3^4f, 3d^2^4s^2^, and 3d^2^4s4p. Also included are values for some forbidden lines that may be of interest to the astrophysical community. Experimental Lande g-factors and leading percentages for the levels are included when available, as well as Ritz wavelengths calculated from the energy levels. Wavelengths and transition probabilities are reported for 3568 and 1896 transitions, respectively. From the list of observed wavelengths, 407 energy levels are determined. The observed intensities, normalized to a common scale, are provided. From the newly optimized energy levels, a revised value for the ionization energy is derived, 118,030(60)cm^-1^, corresponding to 14.634(7)eV. This is 130cm^-1^ higher than the previously recommended value from Iglesias+ (1988, Publ. Inst. Opt. Madrid 47 1).2017ApJS..231...19Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/231/19CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJS/207/20 : Parity-forbidden [Co II] and [V II] lines (Ruffoni+, 2013)J/ApJS/207/13 : The spectrum and term analysis of V II (Thorne+, 2013)J/ApJS/214/18 : VII log(gf) values, and V abundance in HD 84937 (Wood+ 2014)J/ApJS/231/18 : Energy levels & spectral lines of V I (Saloman+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/231/19https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/231/19http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/231/19https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/231/19https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/231/19http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/231/19GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJS/231/19/table3Energy levels of singly-ionized vanadium (V II)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintE[0/118030] Excitation energy from the ground statecm**-1phys.atmol.excitationdoublee_E[0.0006/60] Uncertainty in E (1)cm**-1stat.errorfloatNl[1/64]? Number of connecting lines (2)meta.numberintnullableConfConfiguration (3)phys.atmol.configurationcharTerm? Term of Configuration corresponding to this level (3)phys.atmol.termcharJ[0/8]? Total angular momentum of this levelphys.angMomentum;phys.atmol.levelintnullablePerc[12/100]? Percentage of Config and Term in the eigenvector of this levelstat.paramintnullablePerc2[5/48]? Percentage of Config_2 and Term_2 in the eigenvector of this levelstat.paramintnullableConf2? Configuration 2 (4)phys.atmol.configurationcharTerm2? Term of Config_2 (4)phys.atmol.termcharLandeg[0.2/2.4]? The Lande g factors quoted from the previous compilation of Sugar & Corliss 1985aeli.k.....Sphys.atmol.landefloatnullablef_Landeg[?] Uncertainty flag on Landegmeta.codechardiffE[-0.06/1.2]? Change from energy reported by Thorne+ 2013, J/ApJS/207/13cm**-1stat.fit.omc;phys.energyfloatnullableNotes? Notes (5)meta.notecharInd[1/408] Sequential index number for the level used in the line table (Table 2)meta.id;meta.mainintJ/ApJS/231/19/table6Least-squares fitting parameters for singly-ionized vanadium (V II)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPParity of the configurations (e=even; o=odd)phys.atmol.paritycharConfConfiguration(s) for that parameterphys.atmol.configuration;instr.setupcharParamParameter determined in the least-square fitting procedurestat.paramcharLSF[-12110.7/247397] Parameter value determined in the least-square fitting procedurecm**-1stat.fit.paramdoubleLSFsig[-424/2110]? Standard deviation of the least-squares fittingcm**-1stat.stdevintnullablef_LSFsigf="fixed" if the parameter was not variedmeta.codecharGroup[1/23]? Parameters in each numbered group are linked together in the fitting proceduremeta.idintnullableHF[-15138.4/219143]? Hartree-Fock value for the parametercm**-1phys.energy;phys.atmol.leveldoublenullableLSF/HF[0.4/4.6]? Ratio of the LSF value to the Hartree-Fock value of the parameterstat.fit.omcfloatnullableJ/ApJS/231/19/table2Spectral lines of singly-ionized vanadium (V II)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIobs[1/1600000]? Relative observed intensity (1)spect.line.intensityintnullableChLine description characters (2)phys.atmol.configurationcharWLobs[1102.6/9286.5]? Observed wavelength (3)0.1nmem.wldoublenullablee_WLobs[0.0001/0.05]? Uncertainty in WLobs0.1nmstat.errordoublenullableWNobs[10765.4/90688.7]? Observed wavenumbercm**-1em.freqdoublenullableWLRitz[1102.6/]? Calculated (Ritz) wavelength (4)0.1nmem.wl;phys.atmol.transitiondoublenullablee_WLRitz[/300]? Uncertainty in WLRitz0.1nmstat.errordoublenullableO-C[-0.05/0.2]? Difference between WLobs and WLRitz0.1nmstat.fit.residualdoublenullableC1Configuration of lower levelphys.atmol.configurationcharT1Term of lower levelphys.atmol.termcharJ1[0/7] Angular momentum of lower levelphys.angMomentum;phys.atmol.levelintC2Configuration of upper levelphys.atmol.configurationcharT2Term of upper levelphys.atmol.termcharJ2[0/8] Angular momentum of upper levelphys.angMomentum;phys.atmol.levelintn1[1/292] Index number of lower level (5)meta.idintn2[2/407] Index number of upper level (5)meta.idintElo[0/80767.7] Energy of the lower levelcm**-1phys.energy;phys.atmol.leveldoubleEup[36/94042] Energy of the upper levelcm**-1phys.energy;phys.atmol.leveldoubleTypeType of transition (6)meta.notecharA? Transition probabilitys**-1phys.atmol.transProbdoublenullableAccTransition probability accuracy code (7)meta.code.qualcharr_AReference for transition probability value (8)meta.ref;pos.framecharr_SpReference for spectral line (9)meta.refchar