J/other/RAA/23.Fivo://CDS.VizieR/J/other/RAA/23.F5008doi:10.26093/cds/vizier/dx/cdkqfaaiCDSChi H.Wang F.Li Z.2026-02-10T20:08:18Z2023-10-03T15:17:28ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyopen-star-clustersvisible-astronomytrigonometric-parallaxproper-motionsAs groups of coeval stars born from the same molecular cloud, an open cluster (OC) is an ideal laboratory for studying the structure and dynamical evolution of the Milky Way. The release of high-precision Gaia Early Data Release 3 (Gaia EDR3) and modern machine-learning methods offer unprecedented opportunities to identify OCs. In this study, we extended conventional HDBSCAN (e-HDBSCAN) for searching for new OCs in Gaia EDR3. A pipeline was developed based on the parallel computing technique to blindly search for OCs from Gaia EDR3 within Galactic latitudes |b|<25{deg}. As a result, we obtained 3787 star clusters, of which 83 new OCs were reported after cross-match and visual inspection. At the same time, the main star cluster parameters are estimated by color-magnitude diagram fitting. The study significantly increases the sample size and physical parameters of OCs in the catalog of OCs. It shows the incompleteness of the census of OCs across our Galaxy.2023RAA....23f5008Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/23.F5008CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/350 : Gaia EDR3 (Gaia Collaboration, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/23.F5008https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/23.F5008http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/23.F5008https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/23.F5008https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/23.F5008http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/23.F5008GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RAA/23.F5008/table1 (Parameters of the final 83 new open clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/23.F5008/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/23.F5008/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/23.F5008/table1?GETtext/xml+votable180.050000true102.2176610.09430.0055555555555555566/1498 1810 1845 1873 1914 1947 1976 2022 2538 2846 3017 3510 3535 3605 6192 6656 6688-6689 6797 7102 14147 14198 14399 14808 15856 20803 20860 21512 21583 21596 21623 21631 21803 21938 22030 22197 22261 22407 22435 22443-22444 22446 22840 23379 23562 23593 23735 23922 24125 24222-24223 24270 24421 24431 24437 24441 29334 29915 30456 32518 32577 37782 39215 39226 39802 39983 40038 40496 40511 40527 40570 40656 41290 41418 41617 41785 41841 41999 42627 43134 43212 47146https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/23.F5008?format=asciiOpticaldefaultJ/other/RAA/23.F5008/table1Parameters of the final 83 new open clusters_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[0/82] Seqential numbermeta.idintIDIdentification numbermeta.id;meta.mainintGLONGalactic longitudedegpos.galactic.lone_GLONGalactic longitude errordegstat.errorfloatGLATGalactic latitudedegpos.galactic.late_GLATGalactic latitude errordegstat.errorfloatplxParallaxmaspos.parallax.trigfloate_plxParallax errormasstat.error;pos.parallaxfloatpmRAProper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRAProper motion along RA errormas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDEProper motion along DE errormas/yrstat.error;pos.pm;pos.eq.decfloatNmembTotal number of member in the clustermeta.idintZMetallicityphys.abund.Zfloatm-MDistance modulusmagphot.mag.distModfloatE(V-I)Color excess E(V-I)magphot.color.excessfloatt/tspAge spreadGyrtime.agefloatfrotRotating star fractionmeta.numberfloatfbinBinary fractionmeta.numberfloat