J/ApJ/937/L7ivo://CDS.VizieR/J/ApJ/937/L7doi:10.26093/cds/vizier.19379007CDSPang X.Li Y.Tang S.-Y.Wang L.Wang Y.Li Z.-Y.Wang D.,Kouwenhoven M.B.N.Pasquato M.2024-11-06T20:27:46Z2024-09-09T09:35:04ZCDS support team

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

cds-question@unistra.frstellar-associationsopen-star-clustersproper-motionsvisible-astronomytrigonometric-parallaxradial-velocitystellar-massesstellar-distanceapparent-magnitudesurveysWe use Gaia DR3 data to study the Collinder 132-Gulliver 21 region via the machine-learning algorithm StarGO and find eight subgroups of stars (ASCC 32, Collinder 132 gp 1-6, Gulliver 21) located in close proximity. Three comoving populations were identified among these eight subgroups: (i) a coeval 25Myr old moving group (Collinder 132), (ii) an intermediate-age (50-100Myr) group, and (iii) the 275Myr old dissolving cluster Gulliver 21. These three populations form parallel diagonal stripe-shape overdensities in the U-V distribution, which differ from open clusters and stellar groups in the solar neighborhood. We name this kinematic structure the Collinder 132-Gulliver 21 stream, as it extends over 270pc in the 3D space. The oldest population, Gulliver 21, is spatially surrounded by the Collinder 132 moving group and the intermediate-age group. Stars in the Collinder 132-Gulliver 21 stream have an age difference up to 250Myr. Metallicity information shows a variation of 0.3dex between the youngest and oldest populations. The formation of the Collinder 132-Gulliver 21 stream involves both star formation and dynamical heating. The youngest population (Collinder 132 moving group) with homogeneous metallicity is probably formed through filamentary star formation. The intermediate-age and oldest populations were then scattered by the Galactic bar or spiral structure resonance to intercept Collinder 132's orbit. Without mutual interaction between each population, the three populations are flying by each other currently and will become three distinct groups again in ~50Myr.2022ApJ...937L...7Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/937/L7CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)J/ApJ/649/759 : Bubbles in the galactic disk (Churchwell+, 2006)J/ApJ/670/428 : Bubbles in the galactic disk. II. (Churchwell+, 2007)J/MNRAS/424/2442 : Catalog of bubbles from Milky Way Project (Simpson+, 2012)J/ApJ/764/73 : HST VI phot. of HD 97950 cluster members stars (Pang+, 2013)J/A+A/562/A71 : Abundances of solar neighbourhood dwarfs (Bensby+, 2014)J/MNRAS/438/426 : Spitzer interstellar bubbles (Hou+, 2014)J/A+A/618/A93 : Gaia DR2 open clusters in the MW (Cantat-Gaudin+, 2018)J/A+A/627/A119 : Extended halo of NGC 2682 (M 67) (Carrera+ 2019)J/AJ/158/122 : Local structure & SFH of the MW (Kounkel+, 2019)J/ApJS/245/32 : Newly identified star clusters in Gaia DR2 (Liu+, 2019)J/ApJ/885/131 : High-mass SFR plx & proper motion with VLBI (Reid+, 2019)J/ApJ/877/12 : ComaBer & a Neighbor Stellar Group tidal tails (Tang+, 2019)J/A+A/640/A1 : Portrait Galactic disc (Cantat-Gaudin+, 2020)J/MNRAS/493/351 : A large catalogue of molecular clouds (Chen+, 2020)J/A+A/642/A179 : beta Pic moving group RV of 81 stars (Miret-Roig+, 2020)J/ApJ/891/39 : LAMOST very metal-poor stars of the Gal. halo (Yuan+, 2020)J/ApJ/912/162 : Open clusters in solar neighborhood (Pang+, 2021)J/ApJ/923/20 : Hierarchical clustering in Vela OB2 complex (Pang+, 2021)J/A+A/649/A3 : Gaia EDR3 photometric passbands (Riello+, 2021)J/A+A/657/L3 : Rot. periods of Group X candidate members (Messina+, 2022)J/ApJ/931/156 : 3D morphology of open cl. with Gaia EDR3. II. (Pang+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/937/L7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/937/L7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/937/L7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/937/L7https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/937/L7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/937/L7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/937/L7/table1 (General properties of eight subgroups in the Collinder 132-Gulliver 21 stream)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/937/L7/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/937/L7/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/937/L7/table1?GETtext/xml+votable180.050000true105.73027806-26.449193060.005555555555555556Cone search capability for table J/ApJ/937/L7/tableb1 (Individual members of the eight subgroups in Collinder132-Gulliver21 stream)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/937/L7/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/937/L7/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/937/L7/tableb1?GETtext/xml+votable180.050000true103.420265637-27.4721741110.0055555555555555564/2489 2491 5/5188-5189 5200-5201 9961 9963 9978-9979 6/20740-20741 20764-20765 20808-20809 20816 39645 39725 39727-39728 39730-39731 39734 39736 39738 39740-39741 39743 39786 39808 39813 39815 39821-39823 39851 39874-39875 39882-39883 39904 39906-39907 39910 399301.9867573869263685e-19 4.621782916333392e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/937/L7?format=asciiOpticaldefaultJ/ApJ/937/L7/table1General properties of eight subgroups in the Collinder 132-Gulliver 21 streamrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedClusterCluster identifiermeta.id;meta.maincharprimaryRA_ICRS[105.7/111.7] Right ascension (ICRS) at Ep=2016 (1)degpos.eq.ra;meta.mainDE_ICRS[-31.1/-25.4] Declination (ICRS) at Ep=2016 (1)degpos.eq.dec;meta.mainDist[599.4/795.2] Corrected distance (1)pcpos.distancefloatXc[-416.7/-270.2] Corrected Heliocentric Cartesian X coordinate (1)pcpos.cartesian.x;pos.heliocentricfloatYc[-686.4/-506.1] Corrected Heliocentric Cartesian Y coordinate (1)pcpos.cartesian.y;pos.heliocentricfloatZc[-133.9/-69.8] Corrected Heliocentric Cartesian Z coordinate (1)pcpos.cartesian.z;pos.heliocentricfloatRV[21.7/39.8] Radial velocity (1)km/sphys.veloc;pos.heliocentricfloatpmRA[-5/-1.9] Proper motion in right ascension (pmRA*cosDE) (1)mas/yrpos.pm;pos.eq.rafloatpmDE[3.4/6.4] Proper motion in declination (1)mas/yrpos.pm;pos.eq.decfloatAge[25/275] Age derived from PARSEC isochrone fitting (Figure 1)Myrtime.ageintMcl[39/578] Total mass of the subgroupsolMassphys.massfloatrh[9/28.7] Half-mass radius of the subgrouppcphys.size.radiusfloatrt[4.8/11.7] Tidal radius using Equation 12 in Pinfield 1998MNRAS.299..955Ppcphys.size.radiusfloatN[40/519] Total number of membersmeta.numberintSimbadNameSimbad column added by the CDSmeta.idcharnullableJ/ApJ/937/L7/tableb1Individual members of the eight subgroups in Collinder132-Gulliver21 streamYc[-708/-461] Corrected Heliocentric Cartesian X coordinate (2)pcpos.cartesian.y;pos.heliocentricfloatZc[-162/-42] Corrected Heliocentric Cartesian X coordinate (2)pcpos.cartesian.z;pos.heliocentricfloatDist[569/836.5] Corrected distancepcpos.distancefloat_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedClusterCluster identifiermeta.id.parentcharGmag[6.3/19] Gaia DR3 G band magnitudemagphot.mag;em.optfloatBpmag[6.2/21] Gaia DR3 Blue passband magnitudemagphot.mag;em.opt.BfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 identifiermeta.id;meta.mainRA_ICRS[102.9/113.7] Gaia DR3 Right Ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.maine_RA_ICRS[0.01/0.12] Uncertainty in RAdegmasstat.error;pos.eq.rafloatDE_ICRS[-35.2/-20.9] Gaia DR3 Declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.maine_DE_ICRS[0.01/0.15] Uncertainty in DEdegmasstat.error;pos.eq.decfloatplx[1.17/1.87] Gaia DR3 parallaxmaspos.parallax.trigfloate_plx[0.01/0.17] Uncertainty in plxmasstat.error;pos.parallaxfloatpmRA[-5.54/-1.46] Gaia DR3 proper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRA[0.01/0.16] Uncdrtainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[2.68/6.76] Gaia DR3 proper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDE[0.01/0.19] Uncdrtainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatRpmag[6.5/18] Gaia DR3 Red passband magnitudemagphot.mag;em.opt.RfloatRV[-39.2/95.5]? Gaia DR3 radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV[0.1/40]? Uncertainty in RVkm/sstat.errorfloatnullableMs[0.3/9] Stellar mass from this studysolMassphys.massfloatXo[-461/-234] Heliocentric Cartesian X coordinate (1)pcpos.cartesian.x;pos.heliocentricfloatYo[-724/-444] Heliocentric Cartesian Y coordinate (1)pcpos.cartesian.y;pos.heliocentricfloatZo[-162/-42] Heliocentric Cartesian Z coordinate (1)pcpos.cartesian.z;pos.heliocentricfloatXc[-453/-235] Corrected Heliocentric Cartesian X coordinate (2)pcpos.cartesian.x;pos.heliocentricfloat