J/A+A/713/A48ivo://CDS.VizieR/J/A+A/713/A48CDSMikolaitis S.Tautvaisiene G.Pakstiene E.Drazdauskas A.Bagdonas V.,Viscasillas Vazquez C.Ambrosch M.Chorniy Y.Minkeviciute R.,Stonkute E.Bale B.Curjuric B.Sharma A.Diktanaite K.2026-09-08T06:54:07Z2026-09-08T07:53:07ZCDS support team

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

cds-question@unistra.frchemical-abundancesstellar-agesastronomical-modelsBuilding on our previous study, which demonstrated the necessity of accounting for departures from the local thermodynamic equilibrium while determining elemental abundances, and the importance of asteroseismic ages, we aim to characterise the spatial variations of the empirical [Y/Mg]-age relation across the Galactic disc with a significantly larger sample of stars. We observed high-resolution stellar spectra and determined Mg and Y abundances via spectral synthesis of multiple spectral features, rigorously accounting for non-local thermodynamic equilibrium (NLTE) effects. To anchor the time scale, we determined asteroseismic ages for stars showing solar-type pulsations, while employing cross-checked isochrone-based methods for the remaining stars. We determined the main atmospheric parameters and abundances of Mg and Y for a sample of 528 Galactic field stars, as well as asteroseismic ages for 307 stars and cross-checked isochronal ages for 221 stars. We identified two new triple-lined and nine double-lined spectroscopic stellar systems. Based on a total sample of 736 stars, with data from this and our previous study, we have explored the [Y/Mg] versus age relations across the Galactic disc. The [Y/Mg] versus age relations exhibit systematic variations across the Galactic discs, reflecting differences in star formation and enrichment histories. There is a tendency for [Y/Mg] to increase with increasing metallicity across the age range. However, at the supersolar metallicity this tendency may not hold, and the relations become flatter compared to solar metallicity stars, having lower [Y/Mg] values at young ages and higher at old ages.2026A&A...713A..48Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/713/A48CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/713/A48https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/713/A48http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/713/A48https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/713/A48https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/713/A48http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/713/A48GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/713/A48/tablea1 (Parameters of the stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/713/A48/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/713/A48/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/713/A48/tablea1?GETtext/xml+votable180.050000true114.82549785.22498750.0055555555555555566/322 1341 1826 1913 2781 2916 2923 2935 2973 2994 3006 3066 3071 3262 3452 3532 3538-3540 3542 3546 3553 3561 3566-3567 3570 3577 3601 3608 3755 3760 3799 3801 3806 3809 3813 3816 3823 3835 3837 3860 3866 3868 3870 3878 3886 3888-3890 3902-3904 3912 3914 3926 3933 3936 3941 3943 3945-3946 3955 3957-3958 3960-3962 3969 3971 3974-3975 3987 3990 3993 4001 4004 4006 4016 4022 4028 4033-4035 4041 4045 4048 4051-4052 4054 4056 4059-4060 4064 4068-4069 4071 4075 4079 4090 4239 4296 4311 4452 4670 4808 4854 4882 4885 5019 5074 5088 5091 5108 5154 5533 5666 5668 5682 5697 5763 5953 5983 5997 6141 6210 6273 6308 6325 6334 6387 6398 6409 6457 6523 6702 6733 6745 6766 6926 7058 7131 7217 7227 7311 7330 7343 7435 7505 7510 7515 7517 7525 7527 7536 7542 7545 7548 7551 7580 7583 7591 7599 7604 7609-7610 7618-7619 7622-7623 7626 7639 7645 7650 7656-7658 7660 7667 7673-7674 7771-7772 7791 7797 7799 7807 7883 7886-7887 7891-7892 7896 7899 7907 7921 7927 7930 7932 7935 7941 7943 7946-7948 7952-7953 7955 7958 7960 7966 7973-7974 7977 7981 7983-7984 7986 7990 8000 8006-8007 8009-8010 8013 8020 8022 8025 8027 8035 8037-8038 8040 8049 8054-8056 8058-8059 8065-8066 8072-8073 8077-8078 8080-8081 8086 8088 8094 8096 8099 8101 8105 8108 8116 8118-8120 8143-8145 8151-8153 8155 8160 8169 8171 8178 8180 8185-8186 8470 8543 8790 8985 9069 9085 9093 9178 9244 9268 9441-9442 9451 9466 9520 9529 9553 9610 9620 9627 9637 9645 9651 9731 9751 9792 9799 9838 9841 9874 9939 9953 9966 10003 10057 10354 10375 10555 10584 10609 10726 10833 10871 11075 11100-11101 11165 11213 11227 11253-11254 11290 11294 11338 11368 11406 11423 11436 11441 11444 11450 11455 11754 11795 11806 11825 11834-11835 11883 11907 11927 11935 11944 11951 11958-11960 11964 11966 11970-11971 11975 11979 11983 12001-12002 12004 12007 12009 12011 12021-12023 12025 12029 12031 12169 12218 12512 12818 12911 12916 12953 13041 13158 13205 13296 13418 13610 13715 13746 13750 13773 13805 14005 14138 14200 14207 14217 14220 14252 14305 14352 14373 14399 14463 14514 14520 14523 14573 14632 14640 14642 14729 14733 14751 14758 14766-14767 14780 14785 14807-14808 14821 14837 14859-14860 14862 14867 14895 14903 14917 14928 14953 14956 14999 15011 15237 15320 15395-15396 15402 15420-15421 15479 15495 15501 15507 15620 15655 15657 15664 15667 15671-15672 15674 15686 15692-15693 15712 15715 15719 15730 15743 15765 15767 15829 15838 15856 15865 15883 15961 16090 16346 16362 20127 20479 22120 22300 23096 23533 24027-24029 24327 26552 26975 28077 28538 30245 31688 31984 32397 32554 32628 32685 32708 32754 36693https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/713/A48?format=asciidefaultJ/A+A/713/A48/tablea1Parameters of the starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharIDTycho-2 catalogue identificationmeta.id;meta.maincharTeffEffective temperatureKphys.temperature.effectiveinte_TeffUncertainty in effective temperatureKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggUncertainty in surface gravitylog(cm.s**-2)stat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]Uncertainty in metallicitystat.error;phys.abund.FefloatVtMicroturbulence velocitykm/sphys.veloc.microTurbfloate_VtUncertainty in microturbulence velocitykm/sstat.errorfloat[Mg/H]? NLTE magnesium abundancephys.abundfloatnullablee_[Mg/H]Uncertainty in magnesium abundancestat.error;phys.abundfloat[Y/H]NLTE yttrium abundancephys.abundfloate_[Y/H]? Uncertainty in yttrium abundancestat.error;phys.abundfloatnullable[Y/Mg]Ratio of [Y/Mg]phys.abundfloatAgePARAM? Asteroseismic age determined using PARAMGyrtime.agefloatnullablee_AgePARAM? Lower uncertainty (68% credible interval) in the age determination with PARAMGyrstat.errorfloatnullableE_AgePARAM? Upper uncertainty (68% credible interval) in the age determination with PARAMGyrstat.error;stat.maxfloatnullablenumax? Frequency at maximum poweruHzem.freqfloatnullablee_numax? Uncertainty in frequency at maximum poweruHzstat.errorfloatnullableDeltanu? Large frequency separationuHzem.freq;src.varfloatnullablee_Deltanu? Uncertainty in large frequency separationuHzstat.errorfloatnullableAgeSPInS? Age determination using SPInSGyrtime.agefloatnullablee_AgeSPInS? Uncertainty of age determination using SPInSGyrstat.errorfloatnullableDisk[0/4] 0 = Thin disc, 1 = Thick disc, 3 = Halo, 4 = Unclassifiedmeta.codeintRmean? Mean galactocentric distancekpcpos.distance;stat.meanfloatnullablee_Rmean? Uncertainty in the mean galactocentric distancekpcstat.errorfloatnullableZmax? Maximum distance from the Galactic planekpcpos.cartesian.z;pos.galacticfloatnullablee_Zmax? Uncertainty in the maximum distance from the Galactic planekpcstat.errorfloatnullable_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/A+A/713/A48/tablea2Atomic data of spectral lines used in the abundance analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAtomChemical symbolmeta.notecharIonIonization stage (I=neutral, II=singly ionized)phys.atmol.ionStagecharlambdaWavelength0.1nmem.wldoubleEPLower excitation potentialeVphys.atmol.excitation;stat.minfloatloggfOscillator strengthphys.atmol.oscStrengthfloat