J/ApJ/920/94ivo://CDS.VizieR/J/ApJ/920/94doi:10.26093/cds/vizier.19200094CDSEspinoza-Rojas F.,Chaname J.,Jofre P.,Casamiquela L.2024-06-07T16:01:06Z2023-05-12T07:20:55ZCDS support team

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

cds-question@unistra.frmultiple-starsvisible-astronomyspectroscopychemical-abundancesThe abundance ratios of some chemical species have been found to correlate with stellar age, leading to the possibility of using stellar atmospheric abundances as stellar age indicators. These chemical clocks have already been calibrated with solar twins and open clusters, but it remains to be seen whether they can be effective at identifying coeval stars in a population that spans a broad parameter space (i.e., the promise of chemical tagging). Since the components of wide binaries are known to be stars of common origins, they constitute ideal laboratories for testing the usefulness of chemical clocks for the age dating of field stars. Using a combination of our new measurements and literature data on wide binaries, we show for the first time that chemical clocks are even more consistent among the components of wide binaries than their individual abundances. Moreover, the special case of HIP 34426/HIP 34407 may indicate that chemical clocks are consistent for coeval stars even when those individual abundances are not. If the assumption that chemical clocks are reliable age indicators is correct, this would constitute the first statistically significant evidence that the components of wide binaries are indeed coeval, validating a large body of published work that relies on that to be the case. Furthermore, our results provide strong evidence that chemical clocks indeed carry important information about stellar birthplaces and chemical evolution, and thus we propose that including them in chemical tagging efforts may facilitate the identification of now-dissolved stellar groups.2021ApJ...920...94Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/920/94CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/150/455 : New HIP-based parallaxes for 424 faint stars (Gould+, 2004)J/A+A/441/1149 : Abundances of 20 F-G disk stars (del Peloso+, 2005)J/A+A/454/581 : Iron abundances of 33 wide binaries (Desidera+, 2006)J/ApJ/704/531 : The coevality of young binary systems (Kraus+, 2009)J/A+A/508/L17 : Abundances in solar analogs (Ramirez+, 2009)J/A+A/577/A9 : Sc, V, Mn, and Co in Milky Way stars (Battistini+, 2015)J/A+A/582/A81 : Gaia FGK benchmark stars; abundances (Jofre+, 2015)J/ApJ/808/13 : XO-2S and XO-2N chemical composition (Ramirez+, 2015)J/ApJ/801/L10 : XO-2N and XO-2S equivalent widths (Teske+, 2015)J/A+A/591/A34 : Chemical abundances of zeta Reticuly (Adibekyan+, 2016)J/A+A/588/A81 : Line list and abundances of the binary zet2 Ret (Saffe+, 2016)J/ApJ/819/19 : Equivalent widths of WASP-94A and WASP-94B (Teske+, 2016)J/AJ/153/257 : Comoving stars in Gaia DR1 (Oh+, 2017)J/A+A/604/L4 : HAT-P-4 & TYC 2569-744-1 abundances and spectra (Saffe+, 2017)J/MNRAS/473/5393 : Wide binaries in Tycho-Gaia (Andrews+, 2018)J/ApJ/865/68 : Abundances for 79 Sun-like stars within 100pc (Bedell+, 2018)J/AJ/156/126 : Stellar parameters & abund. from BACCHUS (Jonsson+, 2018)J/A+A/614/A138 : HD 80606/80607 equivalent widths (Lui+, 2018)J/A+A/624/A78 : Masses and ages of 1059 HARPS-GTO stars (Delgado Mena+, 2019)J/A+A/631/A171 : Neutron-capture elementsdwarf galaxies (Skuladottir+, 2019)J/A+A/639/A127 : Age-chemical-clocks-metallicity relations (Casali+, 2020)J/A+A/635/A8 : Differential abundances of open clusters (Casamiquela+, 2020)J/MNRAS/492/1164 : Abundances of Gaia DR2 wide binaries (Hawkins+, 2020)J/A+A/633/L9 : Linear regression fit coefficients (Jofre+, 2020)J/A+A/640/A81 : Abundances of 72 solar-type stars (Nissen+, 2020)J/A+A/652/A25 : Abundance-age relations with open cluster (Casamiquela+, 2021)J/A+A/645/A106 : Atomic data for the Gaia-ESO Survey (Heiter+, 2021)J/MNRAS/502/32 : Evolutionary traits for stellar phylogenie (Jackson+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/920/94https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/920/94http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/920/94https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/920/94https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/920/94http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/920/94GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/920/94/tablea1 (Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/920/94/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/920/94/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/920/94/tablea1?GETtext/xml+votable180.050000true102.747-56.240.0055555555555555566/75 1560 1654 1692 1932 3133 3398 4917 5230 6496 6638 7240 9173 10292 17717 18229 18278 18284 22005 22526-22527 22955 23366 23872 24100 24633 25278 25500 25898 27646 28244-28245 28598 33552 35954 38974 44816 481781.9867573869263685e-19 4.621782916333392e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/920/94?format=asciiOpticaldefaultJ/ApJ/920/94/tablea1CatalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the starmeta.id;meta.maincharRefPaper reference where data were taken frommeta.bibcharInstSpectrograph used to obtained the datameta.id;instrcharSpRangeSpectral range of instrument usednminstr.paramcharTeff[4946/6682] Effective temperatureKphys.temperature.effectiveinte_Teff[5/129] Uncertainty in TeffKstat.error;phys.temperature.effectiveintlogg[3.79/4.83] Surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0.01/0.9] Uncertainty in logglog(cm.s**-2)stat.errorfloatSimbadNameSimbad column added by the CDSmeta.idcharnullable_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexed[Fe/H][-1.43/0.41] Metallicitylog(Sun)phys.abund.Fefloate_[Fe/H][0/0.03] Uncertainty in [Fe/H]log(Sun)stat.error;phys.abund.FefloatVmic[0.7/2.03] Microturbulence velocitykm/sphys.veloc.microTurbfloate_Vmic[0.008/0.2] Uncertainty in Vmickm/sstat.errorfloatSep[354/29771]? Projected physical separationAUpos.angDistancedoublenullableRA_ICRS[24/314] Right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.maine_RA_ICRS[0.007/0.1] Uncertainty in RAdegdegstat.error;pos.eq.rafloatDE_ICRS[-63/64] Declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.maine_DE_ICRS[0.009/0.1] Uncertainty in DEdegdegstat.error;pos.eq.decfloatplx[3.07/83.1] Gaia DR2 parallaxmaspos.parallax.trigfloate_plx[0.01/0.2] Uncertainty in plxmasstat.error;pos.parallaxfloatpmRA[-1001/1338] Gaia DR2 Proper motion in RA directionmas/yrpos.pm;pos.eq.radoublee_pmRA[0.01/0.2] Standard error in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-3543/650] Gaia DR2 Proper motion in DE directionmas/yrpos.pm;pos.eq.decdoublee_pmDE[0.008/0.2] Standard error in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatRVel[-40.8/312]? Gaia DR2 Spectroscopic barycentric radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RVel[0.1/1]? Standard error in RVelkm/sstat.error;spect.dopplerVelocfloatnullableGmag[5.08/11.5] Gaia DR2 G-band mean Vega magnitudemagphot.mag;em.optfloatBPmag[5.38/11.8] Integrated Gaia DR2 BP mean magnitudemagphot.mag;em.opt.BfloatRPmag[4.59/11] Integrated Gaia DR2 RP mean magnitudemagphot.mag;em.opt.RfloatJ/ApJ/920/94/tablea2Atomic data and equivalent widths of linelist used to derive stellar parametersIonElement identifiermeta.id;phys.atmol.elementcharHIP15304? HIP15304 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP15310? HIP15310 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP32865? HIP32865 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP32871? HIP32871 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP34407? HIP34407 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP34426? HIP34426 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWaveWavelength; Angstroms0.1nmem.wldoubleloggflog oscillator strengthphys.atmol.oscStrengthfloatExPotExcitation potentialeVphys.atmol.excitationfloatRefReference codemeta.noteHIP52792? HIP52792 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP52793? HIP52793 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP58240? HIP58240 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP58241? HIP58241 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableJ/ApJ/920/94/tablea3Atomic data and equivalent widths of linelist used to derive abundancesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonElement identifiermeta.id;phys.atmol.elementcharWaveWavelength; Angstroms0.1nmem.wldoubleloggflog oscillator strengthphys.atmol.oscStrengthfloatExPotExcitation potentialeVphys.atmol.excitationfloatRefReference codemeta.noteHIP15304? HIP15304 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP15310? HIP15310 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP32865? HIP32865 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP32871? HIP32871 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP34407? HIP34407 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP34426? HIP34426 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP52792? HIP52792 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP52793? HIP52793 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP58240? HIP58240 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableHIP58241? HIP58241 equivalent width; m{AA}1e-13mspect.line.eqWidthfloatnullableJ/ApJ/920/94/refsReferences used for tablea2 and tablea3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.notecharBIBBIBcode of the referencemeta.bib.bibcodecharCat.Vizier catalogmeta.id;meta.tablecharNoteAdditional note or commentmeta.notechar