J/ApJ/890/119ivo://CDS.VizieR/J/ApJ/890/119doi:10.26093/cds/vizier.18900119CDSCowan J.J.Sneden C.Roederer I.U.Lawler J.E.Den Hartog E.A.,Sobeck J.S.Boesgaard A.M.2022-07-08T07:39:47Z2021-08-18T15:56:38ZCDS support team

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

cds-question@unistra.frchemical-abundanceschemically-peculiar-starsspectroscopyultraviolet-astronomyvisible-astronomyWe have obtained new detailed abundances of the Fe-group elements Sc through Zn (Z=21-30) in three very metal-poor ([Fe/H]~-3) stars: BD+03 740, BD-13 3442, and CD-33 1173. High-resolution ultraviolet Hubble Space Telescope/Space Telescope Imaging Spectrograph spectra in the wavelength range 2300-3050{AA} were gathered, and complemented by an assortment of optical echelle spectra. The analysis featured recent laboratory atomic data for a number of neutral and ionized species for all Fe-group elements except Cu and Zn. A detailed examination of scandium, titanium, and vanadium abundances in large-sample spectroscopic surveys indicates that they are positively correlated in stars with [Fe/H]<=-2. The abundances of these elements in BD+03 740, BD-13 3442, CD-33 1173, and HD 84937 (studied in a previous paper of this series) are in accord with these trends and lie at the high end of the correlations. Six elements have detectable neutral and ionized features, and generally their abundances are in reasonable agreement. For Cr we find only minimal abundance disagreement between the neutral (mean of [CrI/Fe]=+0.01) and ionized species (mean of [CrII/Fe]=+0.08), unlike most studies in the past. The prominent exception is Co, for which the neutral species indicates a significant overabundance (mean of [CoI/H]=-2.53), while no such enhancement is seen for the ionized species (mean of [CoII/H]=-2.93). These new stellar abundances, especially the correlations among Sc, Ti, and V, suggest that models of element production in early high-mass metal-poor stars should be revisited.2020ApJ...890..119Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/890/119CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)B/eso : ESO Science Archive Catalog (ESO, 1991-2021)J/A+A/416/1117 : Abundances in the early Galaxy (Cayrel+, 2004)J/A+A/439/129 : HERES II. Spectroscopic analysis (Barklem+, 2005)J/ApJ/667/1267 : CrI transition probabilities (Sobeck+, 2007)J/ApJ/681/1524 : Detailed abundances for 28 metal-poor stars (Lai+, 2008)J/A+A/493/601 : Lithium abundances of halo dwarfs (Hosford+, 2009)J/ApJS/182/51 : Transitions of rare earth elements (Lawler+, 2009)J/ApJS/182/80 : Rare earth abundances (Sneden+, 2009)J/ApJ/724/341 : Nucleosynthesis of massive metal-free stars (Heger+, 2010)J/ApJ/743/140 : Abundances (Be,{alpha}) in metal-poor stars (Boesgaard+, 2011)J/ApJS/194/35 : Atomic transition probabilities of Mn (Den Hartog+, 2011)J/AJ/141/175 : Abundances in M15 RGB/RHB stars (Sobeck+, 2011)J/ApJ/764/21 : Stellar evolutionary models with 13-120Msun (Chieffi+, 2013)J/ApJS/208/27 : Sun and HD 84937 TiII log(gf) and abundances (Wood+, 2013)J/ApJ/762/26 : Most metal-poor stars. II. Galactic halo stars (Yong+, 2013)J/ApJS/215/20 : Vanadium log(gf) and transition probabilities (Lawler+, 2014)J/AJ/147/136 : Stars of very low metal abundance. VI. (Roederer+, 2014)J/ApJS/214/18 : VII log(gf) values, and V abundance in HD 84937 (Wood+ 2014)J/ApJS/211/20 : NiI transition probability measurements (Wood+, 2014)J/ApJS/220/13 : Co I transition probabilities (Lawler+, 2015)J/ApJS/225/24 : NuGrid stellar data set I. Yields (H to Bi) (Pignatari+, 2016)J/ApJ/817/53 : Fe-group abundance analysis in HD84937 (Sneden+, 2016)J/ApJS/228/10 : Transitions for 183 lines of Cr II (Lawler+, 2017)J/ApJ/857/2 : Abundances in 6 metal-poor stars (Roederer+, 2018)J/ApJ/860/125 : Six warm metal-poor stars iron abundances (Roederer+, 2018)J/ApJS/234/25 : Vanadium transitions in the spectrum of Arcturus (Wood+, 2018)J/ApJS/237/8 : Line lists for X^1^{Sigma}^+^ AlF and AlCl (Yousefi+, 2018)J/ApJ/870/2 : PUSH CCSN to explosions in spherical symmetry. III.https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/890/119https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/890/119http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/890/119https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/890/119https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/890/119http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/890/119GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/890/119/table1 (Model atmospheric parameters from Paper I (Roederer+, 2018, J/ApJ/860/125))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/890/119/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/890/119/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/890/119/table1?GETtext/xml+votable180.050000true75.31926144.11028440.0055555555555555566/4376 23011 25385 35913https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/890/119?format=asciiUVOpticaldefaultJ/ApJ/890/119/table1Model atmospheric parameters from Paper I (Roederer+, 2018, J/ApJ/860/125)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharTeff[6300/6625] Effective temperatureKphys.temperature.effectiveintlogg[3.97/4.29] Log of surface gravitylog(cm.s**-2)phys.gravityfloatVt[1.5/1.7] Microturbulent velocitykm/sphys.velocfloat[M/H][-3/-2.15] Metallicitylog(Sun)phys.abund.ZfloatAbundDisplay the line parameters and abundances for this star (link to Table 2)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/890/119/table2Line parameters and abundancesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[2286.16/5409.77] Line Wavelength0.1nmem.wl;spect.linefloatIonLine Identificationphys.atmol.ionStagecharchi[0/4.08] Lower State Excitation EnergyeVphys.atmol.excitationfloatlog(gf)[-3.07/1.55] Transition Probabilityphys.atmol.oscStrengthfloatlog(eps)1[0.4/5.02]? Abundance for BD+03 740phys.abundfloatnullablelog(eps)2[0.6/5]? Abundance for BD-13 3442phys.abundfloatnullablelog(eps)3[0.4/4.8]? Abundance for CD-33 1173phys.abundfloatnullable