J/ApJ/708/1335ivo://CDS.VizieR/J/ApJ/708/1335doi:10.26093/cds/vizier.17081335CDSWoodley K.A.Harris W.E.Puzia T.H.Gomez M.Harris G.L.H.Geisler D.2017-09-20T05:13:49Z2011-08-09T13:58:00ZCDS support team

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

cds-question@unistra.frchemical-abundancesglobular-star-clustersgalaxiesradial-velocityspectroscopyWe present new integrated light spectroscopy of globular clusters (GCs) in NGC 5128, a nearby giant elliptical galaxy less than 4Mpc away, in order to measure radial velocities and derive ages, metallicities, and alpha-element abundance ratios. Using the Gemini South 8 meter telescope with the instrument Gemini Multi-Object Spectrograph, we obtained spectroscopy in the range of ~3400-5700{AA} for 72 GCs with a signal-to-noise ratio greater than 30{AA}^-1^; and we have also discovered 35 new GCs within NGC 5128 from our radial velocity measurements. We measured and compared the Lick indices from H{delta}_A_ through Fe5406 with the single stellar population models of Thomas et al. (2003MNRAS.339..897T, 2004MNRAS.351L..19T) in order to derive age, metallicity, and [{alpha}/Fe] values.2010ApJ...708.1335Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/708/1335CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/140/2101 : NGC 5128 globular clusters photometry (Sinnott+, 2010)J/AJ/139/1871 : Kinematics of GCs in NGC 5128 (Woodley+, 2010)J/MNRAS/386/1443 : 2dF study of globular clusters in NGC 5128 (Beasley+, 2008)J/AJ/134/494 : NGC 5128 GCs UBVRICMT1 phot. + RV (Woodley+, 2007)J/AJ/128/712 : Washington Photometry in NGC 5128 (Harris+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/708/1335https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/708/1335http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/708/1335https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/708/1335https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/708/1335http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/708/1335GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/708/1335/table2 (New radial velocity measurements of known Globular Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/708/1335/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/708/1335/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/708/1335/table2?GETtext/xml+votable180.050000true201.1716667-43.02933330.005555555555555556Cone search capability for table J/ApJ/708/1335/table3 (Radial velocity measurements of new Globular Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/708/1335/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/708/1335/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/708/1335/table3?GETtext/xml+votable180.050000true201.1685417-43.03247220.0055555555555555566/432622.9196443747461696e-19 5.696014567210867e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/708/1335?format=asciiOpticaldefaultJ/ApJ/708/1335/table2New radial velocity measurements of known Globular ClustersSlitSlit numbermeta.noteintMaskMask/field numbermeta.id;obs.fieldintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_GCSimbad column added by the CDSmeta.notecharGCGlobular Cluster number, <[WHB2007] NNN> in Simbadmeta.id;meta.mainintprimaryONameOld Globular Cluster namemeta.idcharn_OName[b] GC from Woodley et al. 2010 (Cat. J/AJ/139/1871)meta.notecharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainS/NApproximate S/N measured per {AA} between 4700{AA} and 4830{AA}nm**-1stat.snrfloatVGMOSGMOS radial velocitykm/sphys.veloc;pos.heliocentricinte_VGMOSVGMOS uncertaintykm/sstat.errorintRV? Weighted mean radial velocity (2)km/sphys.veloc;pos.heliocentricintnullablee_RV? RV uncertaintykm/sstat.errorintnullableW07Display data from Woodley et al. 2007, Cat. J/AJ/134/494meta.ref.urlcharSimbadSimbad column added by the CDScharJ/ApJ/708/1335/table3Radial velocity measurements of new Globular ClustersT1mag? Washington T1 band magnitude (2)magphot.mag;em.opt.RfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_GCSimbad column added by the CDSmeta.notecharGCGlobular Cluster number, <[WHB2007] NNN> in Simbadmeta.id;meta.mainintprimaryRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainMaskMask/field numbermeta.id;obs.fieldintSlitSlit numbermeta.noteintS/NApproximate S/N measured per {AA} between 4700{AA} and 4830{AA} (470-483nm)nm**-1stat.snrfloatVGMOS? GMOS radial velocitykm/sphys.veloc;pos.heliocentricintnullablee_VGMOS? VGMOS uncertaintykm/sstat.errorintnullablen_VGMOS[bc] averaged GMOS velocity (1)meta.notecharCmag? Washington C band magnitude (2)magphot.mag;em.opt.Ufloatnullablee_Cmag? Cmag uncertaintymagstat.error;phot.magfloatnullableMmag? Washington M band magnitude (2)magphot.mag;em.opt.Vfloatnullablee_Mmag? Mmag uncertaintymagstat.error;phot.mag;em.IR.4-8umfloatnullablee_T1mag? T1mag uncertaintymagstat.error;phot.magfloatnullableH04Display data from Harris et al. 2004, Cat. J/AJ/128/712meta.ref.urlcharSimbadSimbad column added by the CDScharJ/ApJ/708/1335/table4Lick indices and uncertainties for Globular Clusters in NGC 5128recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGCGlobular Cluster number, <[WHB2007] NNN> in Simbadmeta.id;meta.mainintHdALick H{delta}_A_ index (in Angstroems)0.1nmspect.indexfloate_HdAUncertainty in HdA (in Angstroems)0.1nmstat.errorfloatHdFLick H{delta}_F_ index (in Angstroems)0.1nmspect.indexfloate_HdFUncertainty in HdF (in Angstroems)0.1nmstat.errorfloatCN1Lick CN_1_ indexmagspect.indexfloate_CN1Uncertainty in CN1magstat.errorfloatCN2Lick CN_2_ indexmagspect.indexfloate_CN2Uncertainty in CN2magstat.errorfloatCa4227Lick Ca4227 index (in Angstroems)0.1nmmeta.code;spect.indexfloate_Ca4227Uncertainty in Ca4227 (in Angstroems)0.1nmstat.errorfloatG4300Lick G4300 index (in Angstroems)0.1nmmeta.code;spect.indexdoublee_G4300Uncertainty in G4300 (in Angstroems)0.1nmstat.errorfloatHgALick H{gamma}_A_ index (in Angstroems)0.1nmspect.indexdoublee_HgAUncertainty in HgA (in Angstroems)0.1nmstat.errorfloatHgFLick H{gamma}_F_ index (in Angstroems)0.1nmspect.indexfloate_HgFUncertainty in HgF (in Angstroems)0.1nmstat.errorfloatFe4383Lick Fe4383 index (in Angstroems)0.1nmmeta.code;spect.indexfloate_Fe4383Uncertainty in Fe4383 (in Angstroems)0.1nmstat.errorfloatCa4455Lick Ca4455 index (in Angstroems)0.1nmmeta.code;spect.indexfloate_Ca4455Uncertainty in Ca4455 (in Angstroems)0.1nmstat.errorfloatFe4531Lick Fe4531 index (in Angstroems)0.1nmmeta.code;spect.indexfloate_Fe4531Uncertainty in Fe4531 (in Angstroems)0.1nmstat.errorfloatC24668Lick C_2_4668 index (in Angstroems)0.1nmmeta.code;spect.indexfloate_C24668Uncertainty in C24668 (in Angstroems)0.1nmstat.errorfloatHbLick H{beta} index (in Angstroems)0.1nmspect.indexfloate_HbUncertainty in Hb (in Angstroems)0.1nmstat.errorfloatFe5015Lick Fe5015 index (in Angstroems)0.1nmmeta.code;spect.indexfloate_Fe5015Uncertainty in Fe5015 (in Angstroems)0.1nmstat.errorfloatMg1? Lick Mg_1_ indexmagspect.indexfloatnullablee_Mg1? Uncertainty in Mg1magstat.errorfloatnullableMg2? Lick Mg_2_ indexmagspect.indexfloatnullablee_Mg2? Uncertainty in Mg2magstat.errorfloatnullableMgb? Lick Mg_b_ index (in Angstroems)0.1nmmeta.code;spect.indexfloatnullablee_Mgb? Uncertainty in Mgb (in Angstroems)0.1nmstat.errorfloatnullableFe5270? Lick Fe5270 index (in Angstroems)0.1nmmeta.code;spect.indexfloatnullablee_Fe5270? Uncertainty in Fe5270 (in Angstroems)0.1nmstat.errorfloatnullableFe5335? Lick Fe5335 index (in Angstroems)0.1nmmeta.code;spect.indexfloatnullablee_Fe5335? Uncertainty in Fe5335 (in Angstroems)0.1nmstat.errorfloatnullableFe5406? Lick Fe5406 index (in Angstroems)0.1nmmeta.code;spect.indexfloatnullablee_Fe5406? Uncertainty in Fe5406 (in Angstroems)0.1nmstat.errorfloatnullableJ/ApJ/708/1335/table5Ages, metallicities, and [{alpha}/Fe] of Globular Clusters in NGC 5128recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGCGlobular Cluster number, <[WHB2007] NNN> in Simbadmeta.id;meta.mainintf_GC[abcd] Discordant values (1)meta.codecharAgeEstimated ageGyrtime.agefloatE_AgePositive error on AgeGyrstat.error;stat.maxfloate_AgeNegative error on AgeGyrstat.error;time.agefloat[Z/H]The [Z/H] metallicityphys.abund.ZfloatE_[Z/H]Positive error on [Z/H]stat.error;stat.maxfloate_[Z/H]Negative error on [Z/H]stat.error;src.redshiftfloat[a/H]The [{alpha}/H] abundance ratiophys.abundfloatE_[a/H]Positive error on [a/H]stat.error;stat.maxfloate_[a/H]Negative error on [a/H]stat.error;phys.abundfloat