J/ApJS/215/20ivo://CDS.VizieR/J/ApJS/215/20doi:10.26093/cds/vizier.22150020CDSLawler J.E.Wood M.P.Den Hartog E.A.Feigenson T.Sneden C.,Cowan J.J.2015-03-25T06:44:21Z2015-02-26T13:28:24ZCDS support team

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

cds-question@unistra.fratomic-physicsthe-sunspectroscopyNew emission branching fraction measurements for 836 lines of the first spectrum of vanadium (VI) are determined from hollow cathode lamp spectra recorded with the National Solar Observatory 1m Fourier transform spectrometer (FTS) and a high-resolution echelle spectrometer. The branching fractions are combined with recently published radiative lifetimes from laser-induced fluorescence measurements to determine accurate absolute atomic transition probabilities for the 836 lines. The FTS data are also used to extract new hyperfine structure A coefficients for 26 levels of neutral vanadium. These new laboratory data are applied to determine the V abundance in the Sun and metal-poor star HD 84937, yielding log{epsilon}(V)=3.956+/-0.004 ({sigma}=0.037) based on 93 VI lines and log{epsilon}(V)=1.89+/-0.03 ({sigma}=0.07) based on nine VI lines, respectively, using the Holweger-Muller 1D model. These new VI abundance values for the Sun and HD 84937 agree well with our earlier determinations based upon VII.2014ApJS..215...20Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/215/20CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJS/214/26 : Line lists for CN isotopes transitions (Sneden+, 2014)J/ApJS/214/18 : VII log(gf) values, and V abundance in HD 84937 (Wood+ 2014)J/AJ/147/136 : Stars of very low metal abundance. VI. (Roederer+, 2014)J/ApJS/211/31 : Atomic data of vanadium (VI) (Wang+, 2014)J/ApJS/211/20 : NiI transition probability measurements (Wood+, 2014)J/ApJS/208/27 : Sun and HD 84937 TiII log(gf) and abundances (Wood+, 2013)J/ApJS/207/13 : The spectrum and term analysis of VII (Thorne+, 2013)J/ApJ/762/26 : Most metal-poor stars. II. Galactic halo stars (Yong+, 2013)J/ApJS/194/35 : Atomic transition probabilities of Mn (Den Hartog+, 2011)J/MNRAS/412/843 : SAGA extremely metal-poor stars (Suda+, 2011)J/A+A/501/519 : Extremely metal-poor stars abundances (Bonifacio+, 2009)J/ApJS/182/80 : Rare earth abundances (Sneden+, 2009)J/ApJS/182/51 : Rare earth elements transition probabilities (Lawler+, 2009)J/ApJ/681/1524 : Detailed abundances for 28 metal-poor stars (Lai+, 2008)J/A+A/439/129 : HERES II. Spectroscopic analysis (Barklem+, 2005)J/A+A/404/187 : Equivalent widths for metal-poor stars (Gratton+, 2003)J/AJ/120/1841 : Abundances & Kinematics of Halo & Disk Stars (Fulbright 2000)http://diglib.nso.edu/ : National Solar Observatory digital libraryhttp://bass2000.obspm.fr/solar_spect.php : BASS2000: solar spectrumhttp://www.nist.gov/pml/data/asd.cfm : NIST atomic spectra databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/215/20https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/215/20http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/215/20https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/215/20https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/215/20http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/215/20GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJS/215/20/table1Fourier Transform Spectra of a custom water-cooled V Hollow Cathode Discharge (HCD) lampiLamp[110/1000] Lamp currentmAinstr.setupintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/14] Running sequence numbermeta.id;meta.mainintDateObservation datetime.epoch;obsnullableNum[1/10] Serial numbermeta.idintGasBuffer gas (Ne-Ar)instr.setupcharWave1[0/14924] Lower range of wavenumbercm**-1instr.bandwidthintWave2[5769/49105] Upper range of wavenumbercm**-1instr.bandwidthintLim[0.01/0.06] Limit of resolutioncm**-1spect.resolutionfloatcoadd[4/80] Coaddsmeta.numberintBeamBeam splitter (CaF_2_ pr UV)instr.paramFiltFiltermeta.id;instr.filterDetDetectormeta.idcharJ/ApJS/215/20/table2Echelle spectra of commercial V HCD lamps and a custom water-cooled V HCD lamprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintimin[47/137] Minimal experimental indexmeta.idintimax[51/141] Maximal experimental indexmeta.idintDateObservation datetime.epoch;obsnullableNumSerial numbers (1, 3, 5, 7, 9)meta.idcharGasBuffer gas (Ar or Ne)instr.setupchariLamp[3/50] Lamp currentmAinstr.setupintWave1[2000/2200] Lower range of wavenumber ({AA})0.1nmem.wlintWave2[2800/250000] Upper range of wavenumber (in Angstroms)0.1nmem.wlintRes[250000] Resolving powerspect.resolutionintcoadd[6/120] Coaddsmeta.numberintExp[45/900] Exposure timestime.duration;obs.exposureintJ/ApJS/215/20/table3Experimental Atomic Transition Probabilities for 836 lines of VI organized by increasing wavelength in airrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlamAir[2384/9157] Wavelength in air; Angstroms (1)0.1nmem.wl;phys.atmol.transitiondoubleE1[18085/47702] Upper level (2)cm**-1phys.energy;phys.atmol.leveldoubleP1[oe] Upper level parity, odd or even (2)phys.atmol.paritycharJ1[0.5/7.5] Upper level J value (2)phys.atmol.qnfloatE0[0/24779] Lower level (2)cm**-1phys.energy;phys.atmol.leveldoubleP0[oe] Lower level parity, odd or even (2)phys.atmol.paritycharJ0[0.5/6.5] Lower level J value (2)phys.atmol.qnfloatA[0.003/293] Transition probability1e+06s**-1phys.atmol.transProbdoublee_ATotal uncertainty in TranP1e+06s**-1stat.errorfloatlog(gf)[-4/0.8] Log of degeneracy times oscillator strengthphys.atmol.oscStrengthfloatJ/ApJS/215/20/table4Hyperfine Structure (HFS) A coefficients for 25 odd parity levels and one even parity level of neutral vanadium from least-square fits to line profiles in Fourier Transfrom Spectrometer (FTS) datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintConfigElectronic configurationphys.atmol.configurationTermTermphys.atmol.term2J[1/15] 2 times the J valuestat.valueintE[24770/39392] Energy level from Thorne et al. 2011ApJS..192...11Tcm**-1phys.energy;phys.atmol.leveldoubleA[-26.6/21.1] HFS A coefficient (1)mKphys.atmol.transProbfloatJ/ApJS/215/20/table5*Hyperfine structure line component patterns for 94 transitions of ^51^VIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWave[11050.7/32709.5] Center-of-Gravity Wavenumbercm**-1em.wavenumberdoublelamAir[3056/9047] Center-of-Gravity Air Wavelength in Angstroms0.1nmem.wl;phys.atmol.transitiondoubleF1[0/11] Component upper level F or total angular momentumphys.atmol.qnintF0[0/10] Component lower level F or total angular momentumphys.atmol.qnintdWave[-0.4/0.4] Component offset Wavenumber with respect to Center-of-gravity Wavenumbercm**-1em.wl;arith.diffdoubledLam[-0.2/0.3] Component offset Wavelength with respect to Center-of-gravity Wavelength0.1nmem.wl;arith.diffdoubleStr[0/0.4] Component strength (1)spect.line.intensitydouble