J/ApJS/224/35ivo://CDS.VizieR/J/ApJS/224/35doi:10.26093/cds/vizier.22240035CDSHolmes C.E.Pickering J.C.Ruffoni M.P.Blackwell-Whitehead R.,Nilsson H.Engstrom L.Hartman H.Lundberg H.Belmonte M.T.2017-01-23T22:00:00Z2016-08-10T15:04:00ZCDS support team

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

cds-question@unistra.fratomic-physicsWe report a new study of the V I atom using a combination of time-resolved laser-induced fluorescence and Fourier transform spectroscopy that contains newly measured radiative lifetimes for 25 levels between 24648/cm and 37518/cm and oscillator strengths for 208 lines between 3040 and 20000{AA} from 39 upper energy levels. Thirteen of these oscillator strengths have not been reported previously. This work was conducted independently of the recent studies of neutral vanadium lifetimes and oscillator strengths carried out by Den Hartog et al. (2014ApJS..215....7D) and Lawler et al. (2014, J/ApJS/215/20), and thus serves as a means to verify those measurements. Where our data overlap with their data, we generally find extremely good agreement in both level lifetimes and oscillator strengths. However, we also find evidence that Lawler et al. have systematically underestimated oscillator strengths for lines in the region of 9000+/-100{AA}. We suggest a correction of 0.18+/-0.03dex for these values to bring them into agreement with our results and those of Whaling et al. (1985A&A...153..109W). We also report new measurements of hyperfine structure splitting factors for three odd levels of V I lying between 24700 and 28400/cm.2016ApJS..224...35Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/224/35CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJS/215/23 : FeI lifetimes & branching fractions (Den Hartog+, 2014)J/ApJS/215/20 : Vanadium log(gf) and transition probabilities (Lawler+, 2014)J/MNRAS/441/3127 : FeI oscillator strengths for Gaia-ESO (Ruffoni+, 2014)J/ApJS/211/31 : Atomic data of vanadium (V I) (Wang+, 2014)J/A+A/377/361 : Fe II transition probabilities and loggf (Pickering+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/224/35https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/224/35http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/224/35https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/224/35https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/224/35http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/224/35GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJS/224/35/table1Radiative lifetimes for V I levels with log(gf) values reported in Table 4TS-tau[4/72]? This study's measured lifetimenstime.lifetimefloatnullablee_TS-tau[0.2/4]? Uncertainty in TS-taunsstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintConfConfigurationphys.atmol.configuration;instr.setupTermTermphys.atmol.termJJ quantum numbermeta.id;meta.maincharE[18085.9/37518.5] Energy from Thorne et al. (2011ApJS..192...11T)cm**-1phys.energy;phys.atmol.leveldoubleW85-tau[7.7/395]? Whaling lifetime (Whaling et al. 1985A&A...153..109W)nstime.lifetimefloatnullablee_W85-tau[0.5/40]? Uncertainty in W85-taunsstat.errorfloatnullableD14-tau[4/411] Den Hartog lifetime (Den Hartog et al. 2014ApJS..215....7D)nstime.lifetimefloate_D14-tau[0.2/21] Uncertainty in D14-taunsstat.errorfloatO1-tau[7.8/76.4]? First other Laser Induced Fluorescence lifetimenstime.lifetimefloatnullablee_O1-tau[0.4/4.2]? Uncertainty in O1-taunsstat.errorfloatnullabler_O1-tau[ef] Reference for O1-tau (1)meta.ref;pos.framecharO2-tau[7.8/74]? Second other Laser Induced Fluorescence lifetimenstime.lifetimefloatnullablee_O2-tau[0.5/5]? Uncertainty in O2-taunsstat.errorfloatnullabler_O2-tau[dfg] Reference for O2-tau (1)meta.ref;pos.framecharJ/ApJS/224/35/table4Experimental log(gf) values for 208 lines (12 previously not reported) of V I from this study sorted by upper level energyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[3043.1/20230.6] Transition wavelength in Angstroms (1)0.1nmem.wl;phys.atmol.transitiondoubleEup[18085.9/37518.5] Upper level energy (2)cm**-1phys.energy;phys.atmol.leveldoubleJup[0.5/7.5] Upper level J quantum numberphys.atmol.qnfloatElow[0/17243] Lower level energy (2)cm**-1phys.energy;phys.atmol.leveldoubleJlo[0.5/6.5] Lower level J quantum numberphys.atmol.qnfloatBF[0.03/100]? Branching fraction from this work%phys.atmol.branchingRatiofloatnullablee_BF[0/32]? Relative uncertainty in BF (where e_BF_={Delta}BF/BF)%stat.errorfloatnullableTS-log(gf)[-4/0.7]? This work's log(gf) valuephys.atmol.oscStrengthfloatnullablee_TS-log(gf)[0.01/0.2]? Uncertainty in TS-log(gf)stat.errorfloatnullablef_TS-log(gf)[b] Flag on TS-log(gf) (3)meta.codecharL14-log(gf)[-4/0.6]? Lawler log(gf) value (Lawler et al. 2014, J/ApJS/215/20)phys.atmol.oscStrengthfloatnullablee_L14-log(gf)[0.02/0.1]? Uncertainty in L14-log(gf)stat.errorfloatnullablef_L14-log(gf)[a] Flag on L14-log(gf) (3)meta.codecharW85-log(gf)[-4.1/0.5]? Whaling log(gf) value (Whaling et al. 1985A&A...153..109W)phys.atmol.oscStrengthfloatnullablee_W85-log(gf)[0.01/0.3]? Uncertainty in W85-log(gf)stat.errorfloatnullablef_W85-log(gf)[a] Flag on W85-log(gf) (3)meta.codecharD85-log(gf)[-2.3/0.6]? Doerr log(gf) value (Doerr et al. 1985JQSRT..33...55D)phys.atmol.oscStrengthfloatnullablee_D85-log(gf)[0/0.1]? Uncertainty in D85-log(gf)stat.errorfloatnullablef_D85-log(gf)[a] Flag on D85-log(gf) (3)meta.codechar