J/MNRAS/491/3251ivo://CDS.VizieR/J/MNRAS/491/3251doi:10.26093/cds/vizier.74913251CDSPerez-Villegas A.Barbuy B.Kerber L.O.Ortolani S.Souza S.O.Bica E.2024-08-20T20:14:41Z2023-04-28T11:39:12ZCDS support team

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

cds-question@unistra.frglobular-star-clustersmilky-way-galaxyvisible-astronomystellar-distanceproper-motionsradial-velocitymetallicityGlobular clusters (GCs) are the most ancient stellar systems in the Milky Way. Therefore, they play a key role in the understanding of the early chemical and dynamical evolution of our Galaxy. Around 40 per cent of them are placed within ~4kpc from the Galactic centre. In that region, all Galactic components overlap, making their disentanglement a challenging task. With Gaia Data Release 2, we have accurate absolute proper motions for the entire sample of known GCs that have been associated with the bulge/bar region. Combining them with distances, from RR Lyrae when available, as well as radial velocities from spectroscopy, we can perform an orbital analysis of the sample, employing a steady Galactic potential with a bar. We applied a clustering algorithm to the orbital parameters apogalactic distance and the maximum vertical excursion from the plane, in order to identify the clusters that have high probability to belong to the bulge/bar, thick disc, inner halo, or outer halo component. We found that ~30 per cent of the clusters classified as bulge GCs based on their location are just passing by the inner Galaxy, they appear to belong to the inner halo or thick disc component, instead. Most GCs that are confirmed to be bulge GCs are not following the bar structure and are older than the epoch of the bar formation.2020MNRAS.491.3251Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/491/3251CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)VII/202 : Globular Clusters in the Milky Way (Harris, 1997)J/MNRAS/482/5138 : Galactic GC mean proper motions & velocitiesJ/AJ/133/1287 : JHK photometry of 24 Galactic globular clustersJ/A+A/450/105 : Properties of 153 Galactic globular clusters (Bica+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/491/3251https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/491/3251http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/491/3251https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/491/3251https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/491/3251http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/491/3251GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/491/3251/table1 (Globular clusters data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/491/3251/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/491/3251/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/491/3251/table1?GETtext/xml+votable180.050000true273.52-28.630.0055555555555555566/12943 28705 28717 28741 28751 28768-28769 28778 28781 28805 28808 28815 28817 28833 28835 28838 28855 28867-28868 28876-28877 28882 28889 28895 28899 28959 28962 28970 28974 29077 29184 29187 29195 29202 29216 29222 29231 29233 29248 29267 29289 29294 29318 29377 29504 29632 29636-29637 29816 29870 30321 30378 30769 30998 31043 33321 37843 41304 41852 42152 42278 42314 42320 42361 42466 42761 42789 42841 42862 42958 47125 47777 47825 47866 47971https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/491/3251?format=asciiOpticaldefaultJ/MNRAS/491/3251/table1Globular clusters dataSimbadNameSimbad column added by the CDSmeta.idcharnullabler_RVReference for RV (2)meta.ref;pos.framecharRcCore radius from Harris (1996AJ....112.1487H, Cat. VII/202)arcminphys.angSizefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharf_Name[*] Flag on Name (1)meta.codecharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatDistDistancekpcpos.distancefloate_DistError on Distkpcstat.errorfloatr_DistReference for Dist (2)meta.ref;pos.framecharRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVError on RVkm/sstat.errorfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAError on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEError on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloat[Fe/H]Fe/H abundance ratio (3)phys.abund.Fe;arith.ratiofloatr_[Fe/H]Reference for [Fe/H] (2)meta.refcharJ/MNRAS/491/3251/table2Globular cluster distances from the literatureNameCluster namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Name[*] Flag on Name (1)meta.codecharDistAdopted distancekpcpos.distancefloate_DistError on Distkpcstat.errorfloatDH10? Distance from Harris (1996AJ....112.1487H, Cat. VII/202)kpcpos.distancefloatnullableDB19Distance from Baumgardt et al. (2019MNRAS.482.5138B, Cat. J/MNRAS/482/5138)kpcpos.distancefloatDV07? Distance from Valenti, Ferraro & Origlia (2007AJ....133.1287V, Cat. J/AJ/133/1287)kpcpos.distancefloatnullableDGaia? Distance from estimated by the inverse of the parallax from Gaia DR2 (2018A&A...616A...1G, Cat. I/345)kpcpos.distancefloatnullableDours? Distance taken from isochrone fittings of the CMD and RR Lyrae estimated by our groupkpcpos.distancefloatnullableDB06? Distance from Bica et al. (2006A&A...450..105B, Cat. J/A+A/450/105)kpcpos.distancefloatnullableJ/MNRAS/491/3251/table4Orbital parameters for different bar pattern speedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharrp40Median perigalactic distance for {Omega}_b_=40km/s/kpckpcpos.distancefloate_rp40Error on rp40kpcstat.errorfloate_ra40Error on ra40kpcstat.errorfloatz40Maximum vertical excursion from the Galactic plane for {Omega}_b_=40km/s/kpckpcpos.cartesian.z;pos.galacticfloate_z40Error on z40kpcstat.errorfloate40Orbital eccentricity for {Omega}_b_=40km/s/kpcsrc.orbital.eccentricityfloate_e40Error on e40stat.errorfloatrp45Median perigalactic distance for {Omega}_b_=45km/s/kpckpcpos.distancefloate_rp45Error on rp45kpcstat.errorfloatra45Median apogalactic distance for {Omega}_b_=45km/s/kpckpcpos.distancefloate_ra45Error on ra45kpcstat.errorfloatz45Maximum vertical excursion from the Galactic plane for {Omega}_b_=45km/s/kpckpcpos.cartesian.z;pos.galacticfloate_z45Error on z45kpcstat.errorfloate45Orbital eccentricity for {Omega}_b_=45km/s/kpcsrc.orbital.eccentricityfloate_e45Error on e45stat.errorfloatrp50Median perigalactic distance for {Omega}_b_=50km/s/kpckpcpos.distancefloate_rp50Error on rp50kpcstat.errorfloatra50Median apogalactic distance for {Omega}_b_=50km/s/kpckpcpos.distancefloate_ra50Error on ra50kpcstat.errorfloatz50Maximum vertical excursion from the Galactic plane for {Omega}_b_=50km/s/kpckpcpos.cartesian.z;pos.galacticfloatra40Median apogalactic distance for {Omega}_b_=40km/s/kpckpcpos.distancefloate_z50Error on z50kpcstat.errorfloate50Orbital eccentricity for {Omega}_b_=50km/s/kpcsrc.orbital.eccentricityfloate_e50Error on e50stat.errorfloatJ/MNRAS/491/3251/table5Membership probability for different bar pattern speedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharBulge40Probability of the cluster to be part of the bulge for {Omega}_b_=40km/s/kpc%stat.probabilityfloatDisk40Probability of the cluster to be part of the disk for {Omega}_b_=40km/s/kpc%stat.probabilityfloatHaloi40Probability of the cluster to be part of the inner halo for {Omega}_b_=40km/s/kpc%stat.probabilityfloatHaloo40Probability of the cluster to be part of the outer halo for {Omega}_b_=40km/s/kpc%stat.probabilityfloatBulge45Probability of the cluster to be part of the bulge for {Omega}_b_=45km/s/kpc%stat.probabilityfloatDisk45Probability of the cluster to be part of the disk for {Omega}_b_=45km/s/kpc%stat.probabilityfloatHaloi45Probability of the cluster to be part of the inner halo for {Omega}_b_=45km/s/kpc%stat.probabilityfloatHaloo45Probability of the cluster to be part of the outer halo for {Omega}_b_=45km/s/kpc%stat.probabilityfloatBulge50Probability of the cluster to be part of the bulge for {Omega}_b_=50km/s/kpc%stat.probabilityfloatDisk50Probability of the cluster to be part of the disk for {Omega}_b_=50km/s/kpc%stat.probabilityfloatHaloi50Probability of the cluster to be part of the inner halo for {Omega}_b_=50km/s/kpc%stat.probabilityfloatHaloo50Probability of the cluster to be part of the outer halo for {Omega}_b_=50km/s/kpc%stat.probabilityfloatJ/MNRAS/491/3251/table6Classification of GCs based on dynamical properties, assuming their maximum membership probabilityrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharf_Name[*] Flag on Name (1)meta.codecharCompComponent (Bulge/Bar, Thick disc, Inner halo or Outer halo)obs.fieldcharJ/MNRAS/491/3251/table7Bulge GC orbits that follow the Galactic bar for different pattern speedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.maincharOrbbar40Percentage of orbits in the bulge GC that support the bar shape for {Omega}_b_=40km/s/kpc%stat.fit.paramfloatOrbbar45Percentage of orbits in the bulge GC that support the bar shape for {Omega}_b_=45km/s/kpc%stat.fit.paramfloatOrbbar50Percentage of orbits in the bulge GC that support the bar shape for {Omega}_b_=50km/s/kpc%stat.fit.paramfloat