J/A+A/708/A259ivo://CDS.VizieR/J/A+A/708/A259CDSXu C.Qiao Y.Tang B.T.Fernandez-Trincado J.G.Yan Z.Q.Huang R.Y.,Geisler D.2026-04-14T08:55:24Z2026-04-14T09:54:53ZCDS support team

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

cds-question@unistra.frgalaxiesgiant-starsphotometryspectroscopychemical-abundancesvisible-astronomyDuring its evolution, the Milky Way (MW) incorporated numerous dwarf galaxies, particularly low-mass systems. The surviving dwarf galaxies orbiting the MW serve as exceptional laboratories for studying the unique properties of these systems. Their metalpoor environments and shallow gravitational potentials likely drive significant differences in star formation and star cluster properties compared to those in the MW. Using high-quality near-infrared spectra from the APOGEE survey, we determined abundances of Fe, C, N, O, Mg, Al, Si, Ca, Ti, Cr, Mn, Ni, and Ce for 74 stars in four MW satellite dwarf galaxies: Fornax, Sextans, Draco, and Carina. Our analysis reveals that the distribution of {alpha] elements (e.g., [Si/Fe]) strongly correlates with galaxy luminosity (and hence mass), underscoring the critical role of galaxy mass in shaping chemical evolution. These dwarf galaxies exhibit [Al/Fe]~ -0.5, which is comparable to those of the metal-poor stars in the MW. Additionally, we identified nitrogen-rich field stars in the Fornax dwarf galaxy, which display distinct metallicities compared to its known globular clusters (GCs). If these stars originated in GCs and subsequently escaped, their presence suggests we are observing relics of destroyed GCs, offering possible evidence of cluster disruption.2026A&A...708A.259Xhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/708/A259CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/708/A259https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/708/A259http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/708/A259https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/708/A259https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/708/A259http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/708/A259GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/708/A259/tableb1 (Basic information on stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/708/A259/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/708/A259/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/708/A259/tableb1?GETtext/xml+votable180.050000true40.128375-34.36744440.0055555555555555566/10182-10183 27207 27218 35968-35969 39097 391001.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/708/A259?format=asciiOpticaldefaultJ/A+A/708/A259/tableb1Basic information on starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadNameSimbad column added by the CDSmeta.idcharnullableSeqRunning numbermeta.idintAPOGEEAPOGEE identifiermeta.id;meta.maincharRAdegRight Ascension (J2000)degpos.eq.raDEdegDeclination (J2000)degpos.eq.decTeffEffective temperatureKphys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggUncertainty in logglog(cm.s**-2)stat.errorfloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVUncertainty in RVkm/sstat.errorfloatS/NSignal-to-noise ratiostat.snrintGmagGaia G-band magnitudemagphot.mag;em.opt.VfloatDGal[Car Dra Fnx Sex] Dwarf galaxy membershipmeta.id.parentchar_RAPositions from name (right ascension part)degpos.eq.ra;meta.main_DEPositions from name (declination part)degpos.eq.dec;meta.mainJ/A+A/708/A259/tableb2Chemical abundances of starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning numbermeta.idint[Fe/H]Metallicity (Iron abundance relative to H)phys.abund.Zfloat[C/Fe]? Carbon abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[N/Fe]? Nitrogen abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[O/Fe]? Oxygen abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Mg/Fe]? Magnesium abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Al/Fe]? Aluminum abundance ratio relative to Ironphys.abundfloatnullable[Si/Fe]? Silicon abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Ca/Fe]? Calcium abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Ti/Fe]? Titanium abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Cr/Fe]? Chromium abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Mn/Fe]? Manganese abundance ratio relative to Ironphys.abundfloatnullable[Ni/Fe]? Nickel abundance ratio relative to Ironphys.abund;arith.ratiofloatnullable[Ce/Fe]? Cerium abundance ratio relative to Ironphys.abundfloatnullable