J/MNRAS/478/1520ivo://CDS.VizieR/J/MNRAS/478/1520doi:10.26093/cds/vizier.74781520CDSBaumgardt H.Hilker M.2024-08-18T20:19:41Z2021-10-01T13:13:40ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyglobular-star-clustersstellar-massesradial-velocitygalaxy-kinematicsvisible-astronomyWe have determined masses, stellar mass functions, and structural parameters of 112 Milky Way globular clusters by fitting a large set of N-body simulations to their velocity dispersion and surface density profiles. The velocity dispersion profiles were calculated based on a combination of more than 15000 high-precision radial velocities which we derived from archival ESO/VLT and Keck spectra together with ~20000 published radial velocities from the literature. Our fits also include the stellar mass functions of the globular clusters, which are available for 47 clusters in our sample, allowing us to self-consistently take the effects of mass segregation and ongoing cluster dissolution into account. We confirm the strong correlation between the global mass functions of globular clusters and their relaxation times recently found by Sollima & Baumgardt (2017). We also find a correlation of the escape velocity from the centre of a globular cluster and the fraction of first generation stars (FG) in the cluster recently derived for 57 globular clusters by Milone et al. (2017), but no correlation between the FG star fraction and the global mass function of a globular cluster. This could indicate that the ability of a globular cluster to keep the wind ejecta from the polluting star(s) is the crucial parameter determining the presence and fraction of second-generation stars and not its later dynamical mass loss.2018MNRAS.478.1520Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/478/1520CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/478/1520https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/478/1520http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/478/1520https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/478/1520https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/478/1520http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/478/1520GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/478/1520/table2 (Derived parameters of all studied globular clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/478/1520/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/478/1520/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/478/1520/table2?GETtext/xml+votable180.050000true6.0223292-72.08144440.005555555555555556Cone search capability for table J/MNRAS/478/1520/tabled (Individual stellar radial velocities for stars in the field of 53 clusters (tables D1-D53))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/478/1520/tabled?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/478/1520/tabled?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/478/1520/tabled?GETtext/xml+votable180.050000true292.055125-30.408778060.0055555555555555566/1133 6389 9436 9666 10008 10321 10336-10337 12405 12425 12531 12943 14489 16645 16647 16658 17121 19091 20001 21017 24843 25873 27237 27975 27981 27986 27992 28067 28577 28705 28751 28762 28768-28770 28776 28778 28808 28815 28817 28838 28882 28889 28899 28905 28966-28967 28970 28972-28974 29184 29187 29195 29200 29202 29216 29222 29267 29289 29294 29636-29637 29816 29870 30321 30323 30378 30769 30995 30998 31019 31043 31115 31396 31398 31416-31417 31723 33321 33323 33330 33634-33635 34242-34243 36971 37294 37636 38465 39642 39954 41011 41257 41304 41507 41513 41522 41852 42076 42278 42314 42320 42336 42361 42466 42700 42761 42789 42841 42862 42955 42958 42990-42991 43125 43193 43225 43227 44086 44220 44427 47125 47168 47620 47777 47825 47868 47901 47903 47916 47935 47970-47971 48021 48035 48041 48434 48440 48444 486981.5062136169708525e-19 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/478/1520?format=asciiOpticaldefaultJ/MNRAS/478/1520/table2Derived parameters of all studied globular clustersSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNote[*] * indicates data in tabled.datmeta.notecharClusterName of the clustermeta.id.parentcharNRVNumber of cluster members with measured radial velocitiesmeta.numberint<RV>Mean radial velocity of the clusterkm/sphys.veloc;pos.heliocentricfloate_<RV>Mean radial velocity of the cluster errorkm/sstat.errorfloatchi2Reduced chi^2^ value of the velocity dispersion fitstat.fit.chi2;phys.veloc.dispersion;meta.modelledfloatDistCluster distance (1)kpcpos.distancefloatn_Dist[ab] Note on Dist (2)meta.notecharMassTotal cluster masssolMassphys.massdoublee_MassTotal cluster mass errorsolMassstat.error;phys.massdoubleM/LVTotal cluster V-band mass-to-light ratiosolMass/solLumphys.composition.massLightRatiofloate_M/LVTotal cluster V-band mass-to-light ratio errorsolMass/solLumstat.errorfloatrcCore half-light radiuspcphys.size.radiusfloatrnmHalf-mass half-light radiuspcphys.size.radiusfloatrmlpProjected half-light radiuspcphys.size.radiusfloatlogrhocCentral densitylog(solMass.pc**-3)phys.densityfloatlogrhonmDensity inside the half-mass radiuslog(solMass.pc**-3)phys.size.radiusfloatlogTRHHalf-mass relaxation timelog(yr)time.relaxfloatMFslopeGlobal mass function slopearith.grad;phys.massdoublen_MFslope[cd] Note on MFslope (2)meta.notecharsigma0Mass-weighted central (1D) velocity dispersionkm/sphys.veloc.dispersionfloatVescCentral escape velocitykm/sphys.veloc.escapefloat_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/MNRAS/478/1520/tabledIndividual stellar radial velocities for stars in the field of 53 clusters (tables D1-D53)SimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentchar2MASS2MASS IDmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)degpos.eq.dec;meta.mainindexedRVAverange radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVAverange radial velocity errorkm/sstat.errorfloatDcenDistance from the cluster centrearcsecpos.distancefloatJmag? 2MASS J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? 2MASS J magnitude errormagstat.error;phot.magfloatnullableKmag? 2MASS K magnitudemagphot.mag;em.IR.Kfloatnullablee_Kmag? 2MASS K magnitude errormagstat.error;phot.magfloatnullablePMembMembership probability based on the radial velocitystat.probabilityfloato_RVNumber of RV measurementsmeta.numberintPSingle? Probability that the star has a constant radial velocity for stars with multiple radial velocity measurementsstat.fit.goodnessfloatnullable