J/MNRAS/465/L39ivo://CDS.VizieR/J/MNRAS/465/L39doi:10.26093/cds/vizier.74659039CDSHollyhead K.Kacharov N.Lardo C.Bastian N.Hilker M.Rejkuba M.,Koch A.Grebel E.K.Georgiev I.2024-08-17T20:17:31Z2018-09-07T10:03:41ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsstellar-associationsLindsay 1 is an intermediate-age (~=8Gyr) massive cluster in the Small Magellanic Cloud. Using VLT FORS2 spectra of 16 probable cluster members on the lower red giant branch of the cluster, we measure CN and CH band strengths (at ~=3883 and 4300{AA}, respectively), along with carbon and nitrogen abundances and find that a sub-population of stars has significant nitrogen enrichment. A lack of spread in carbon abundances excludes evolutionary mixing as the source of this enrichment, so we conclude that this is evidence of multiple populations. Therefore, Lindsay 1 is the youngest cluster to show such variations, implying that the process triggering the onset of multiple populations must operate until at least redshift ~1.2017MNRAS.465L..39Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/465/L39CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/407/919 : UBVI and JHK photometry in Lindsay 1 (Alcaino+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/465/L39https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/465/L39http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/465/L39https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/465/L39https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/465/L39http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/465/L39GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/465/L39/table1 (Derived properties of each of the targets in our study)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/465/L39/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/465/L39/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/465/L39/table1?GETtext/xml+votable180.050000true0.98930389-73.502296110.0055555555555555566/33320https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/465/L39?format=asciidefaultJ/MNRAS/465/L39/table1Derived properties of each of the targets in our studyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar identification numbermeta.id;meta.mainintn_Star[abcd ] Note on Star (1)meta.notecharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.VfloatImagI magnitudemagphot.mag;em.opt.IfloatS3883CS{lambda}3883 index quantifying the strength of the UV CN bandspect.indexfloate_S3883rms uncertainty on S3883stat.errorfloatCH4300CH{lambda}4300 index quantifying the strength of the G band of CHspect.indexfloate_CH4300rms uncertainty on CH4300stat.errorfloat[C/Fe]? Abundance [C/Fe]phys.abundfloatnullablee_[C/Fe]? rms uncertainty on [C/Fe]stat.error;phys.abundfloatnullable[N/Fe]? Abundance [N/Fe]phys.abundfloatnullablee_[N/Fe]? rms uncertainty onstat.error;phys.abundfloatnullableFe5270? Fe5270 line indexspect.index;spect.linefloatnullablee_Fe5270? rms uncertainty on Fe5270stat.errorfloatnullableCaIIHKCaII (H+K) line indexspect.indexfloate_CaIIHKrms uncertainty on CaIIHKstat.errorfloatTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggrms uncertainty on logglog(cm.s**-2)stat.errorfloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloat