J/ApJ/749/124ivo://CDS.VizieR/J/ApJ/749/124doi:10.26093/cds/vizier.17490124CDSColucci J.E.Bernstein R.A.2017-06-13T11:08:57Z2014-01-13T15:43:47ZCDS support team

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

cds-question@unistra.frchemical-abundancesline-intensitiesmagellanic-cloudsglobular-star-clustersAs part of an ongoing program to measure detailed chemical abundances in nearby galaxies, we use a sample of young- to intermediate-age clusters in the Large Magellanic Cloud with ages of 10Myr-2Gyr to evaluate the effect of isochrone parameters, specifically core convective overshooting, on Fe abundance results from high-resolution, integrated light spectroscopy. In this work we also obtain fiducial Fe abundances from high-resolution spectroscopy of the cluster individual member stars. We compare the Fe abundance results for the individual stars to the results from isochrones and integrated light spectroscopy to determine whether isochrones with convective overshooting should be used in our integrated light analysis of young- to intermediate-age (10Myr-3Gyr) star clusters. We find that when using the isochrones from the Teramo group, we obtain more accurate results for young- and intermediate-age clusters over the entire age range when using isochrones without convective overshooting. While convective overshooting is not the only uncertain aspect of stellar evolution, it is one of the most readily parameterized ingredients in stellar evolution models, and thus important to evaluate for the specific models used in our integrated light analysis. This work demonstrates that our method for integrated light spectroscopy of star clusters can provide unique tests for future constraints on stellar evolution models of young- and intermediate-age clusters.2012ApJ...749..124Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/749/124CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/746/29 : High-resolution GC abundances. IV. 8 LMC GCs (Colucci+, 2012)J/ApJ/735/55 : High-resolution GCs abundances. III. LMC (Colucci+, 2011)J/ApJ/717/277 : Chemical composition of old LMC clusters (Mucciarelli+, 2010)J/ApJ/695/L134 : Chemical anomalies in old LMC clusters (Mucciarelli+, 2009)J/A+A/371/L5 : CCD {Delta}a-photometry of NGC 1866 (Maitzen+, 2001)J/AJ/119/1748 : WFPC 2 imaging of young LMC clusters (Keller+, 2000)J/AJ/116/723 : LMC star clusters ages and metallicity (Bica+ 1998)J/A+AS/112/367 : Selected Regions C and E in the LMC (Will+, 1995)J/MNRAS/260/782 : CCD photometry of NGC 2004 and 2100 (Balona+ 1993)J/ApJS/71/25 : NGC 1866 CCD photometry (Brocato+ 1989)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/749/124https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/749/124http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/749/124https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/749/124https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/749/124http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/749/124GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/749/124/targets (Stellar targets properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/749/124/targets?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/749/124/targets?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/749/124/targets?GETtext/xml+votable180.050000true82.17996-66.208390.0055555555555555566/33075 33078 33094 33113 331373.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/749/124?format=asciiOpticaldefaultJ/ApJ/749/124/targetsStellar targets propertiesN2[3/26] Number of FeII lines usedmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (NNNN-NNNN)meta.id;meta.maincharEWsDisplay the Equivalent Widths for this starmeta.ref.urlcharRAJ2000[72/86] Right ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000[-70/-65] Declination (J2000) (1)degpos.eq.dec;meta.mainDateRun datetime.epochcharTexp[2100/14800] Exposure timestime.duration;obs.exposureintS/N[54/123] Signal-to-noise ratio at 6500{AA}pixel**-1stat.snrintlambdaWavelength range in angstroms0.1nmem.wlcharVmag[13/17.1] V-band magnitude (1)magphot.mag;em.opt.Vfloat(m-M)0[18.4/18.5] Distance modulus (2)magphot.mag.distModfloatE(B-V)[0.06/0.3] Color excess (2)magphot.color.excessfloatVMag[-6.2/-1.6] Absolute V-band magnitude (3)phys.magAbs;em.opt.VfloatB-V[0.5/1.7] B-V color index (3)phot.color;em.opt.B;em.opt.VfloatTeff[3885/5850] Effective temperatureKphys.temperature.effectiveintlogg[0.05/2] Surface gravitylog(cm.s**-2)phys.gravityfloatVt[1.3/3.3] Microturbulent velocitykm/sphys.velocfloat[Fe/H]1[-0.7/-0.03] FeI abundancelog(Sun)phys.abundfloate_[Fe/H]1[0.1/0.3] [Fe/H]1 uncertainty (4)log(Sun)stat.error;phys.abund.FefloatN1[17/93] Number of FeI lines usedmeta.numberint[Fe/H]2[-0.7/-0.07] FeII abundancelog(Sun)phys.abundfloate_[Fe/H]2[0.1/0.5] [Fe/H]2 uncertainty (4)log(Sun)stat.error;phys.abund.FefloatRV[241/303] Stellar radial velocitykm/sphys.veloc;pos.heliocentricfloate_RV[0.1/0.3] RV uncertaintykm/sstat.errorfloatSimbadNameSimbad column added by the CDSmeta.idcharJ/ApJ/749/124/table2Line parameters and stellar equivalent widthsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonSpecies identification, FeI or FeII (1)phys.atmol.ionStagecharlambda[4508/7942] Wavelength; in Angstroms (1)0.1nmem.wldoubleExPot[0/5.6] Excitation Potential (1)eVphys.atmol.excitationfloatlog(gf)[-6.4/0.7] log oscillator strength (2)phys.atmol.oscStrengthfloatEW1978-737? Equivalent width in 1978-737 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1978-730? Equivalent width in 1978-730 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1866-954? Equivalent width in 1866-954 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1866-1653? Equivalent width in 1866-1653 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1866-1667? Equivalent width in 1866-1667 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1711-831? Equivalent width in 1711-831 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1711-988? Equivalent width in 1711-988 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW1711-1194? Equivalent width in 1711-1194 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW2100-c2? Equivalent width in 2100-c2 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW2100-c12? Equivalent width in 2100-c12 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullableEW2100-b22? Equivalent width in 2100-b22 (3)0.1pmmeta.id;spect.line.eqWidthfloatnullable