J/A+A/660/A4ivo://CDS.VizieR/J/A+A/660/A4doi:10.26093/cds/vizier.36600004CDSHao C.J.Xu Y.Wu Z.Y.Lin Z.H.Liu D.J.Li Y.J.2022-09-30T21:55:16Z2022-03-31T08:55:44ZCDS 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-motionsradial-velocityThe astrometric satellite Gaia has recently released part of its third data set, which provides a good opportunity to hunt for more open clusters in the Milky Way. Here, we conduct a blind search for open clusters in the Galactic disk using a sample-based clustering search method with high spatial resolution, which is especially suited for finding hidden targets. In addition to confirming 1930 previously known open clusters and 82 known globular clusters, 704 new stellar clusters are proposed as potential open clusters at Galactic latitudes of |b|<=20{deg}. For each of these new open clusters, we present its coordinates, detailed astrometric parameters and age, as well as its radial velocity, if available. Our blind search greatly increases the number of Galactic open clusters and shows the incompleteness of open cluster census in our Galaxy.2022A&A...660A...4Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/660/A4CatalogResearchIsServedByTAP 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/A+A/660/A4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/660/A4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/660/A4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/660/A4https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/660/A4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/660/A4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/660/A4/table1 (Mean parameters for the reported open clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/660/A4/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/660/A4/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/660/A4/table1?GETtext/xml+votable180.050000true267.981796-27.8513080.005555555555555556Cone search capability for table J/A+A/660/A4/table2 (Members for the reported open clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/660/A4/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/660/A4/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/660/A4/table2?GETtext/xml+votable180.050000true267.99926-27.8734570.0055555555555555565/3657 3672 7223 7564 7567 9465 9476 9820 9822 9944 9966 10539 10594 6/511 1116 1118 1140 1142 1198-1199 1208 1285 1287 1298 1331 1334 1352 1354 1381 1409 1413 1427 1446 1509 1784 1786 1840-1841 2394-2395 2938 2940 2977 3037 3049-3054 3062-3064 3069 3087 3089 3091 3098 3149 3171 3173-3175 3177 3180 3184 3254-3257 3259-3260 3263 3270 3272-3273 3276-3277 3280-3281 3283 3301 3306-3307 3309 3314 3320 3332 3342 3364 3369 3595 3598 3627 3629 3640 3645 3652-3653 3674 3716 3720 3722-3723 3732 3747 3752 3848 3884 6795 6817 12939 12963 12971 12974 12984 13055 13226 13559 13565 13730 13736 13990 14007 14033 14046 14065 14068 14188 14203 14206 14223 14225 14234 14237 14239 14242-14243 14246 14249-14252 14254 14258-14259 14261-14263 14270 14275 14278 14280 14282 14291 14295-14296 14300-14302 14304 14306 14308-14310 14314 14324 14336 14338 14350 14353 14372 14407 14413 14415 14427-14428 14449 14452 14455 14460-14461 14603 14606 14616-14617 14619-14621 14624 14626 14636-14637 14643 14645-14646 14653 14655 14660 14664 14666 14686 14692 14694 14696 14698 14700 14704-14705 14711-14712 14784-14785 15362-15363 15365 15374 15376 15378-15379 15383 15391 15412-15413 15421 15425-15426 15437-15438 15443 15464 15477-15478 15486 15556 15570-15571 15619-15622 15632-15633 15635 15642 15661 15664-15665 15668 15672-15673 15677 15679 15687 15855 16148-16150 16189 16191 16197 20753 20765 20817 20823 20827 20832 20849 20863 20903 20934 20940 20950 20989 21285 21296 21298 21311 21352 21354 21371 21402-21403 21433 21436 21438 21447 21456-21458 21506 21510 21518 21538-21539 21550 21552 21562 21565 21608 21637-21638 21640 21669 21672 21680 21686 21689 21691 21693 21695 21706 22038 22040 22091 22097 22130 22157 22160 22163 22167 22173 22210 22212 22220-22221 22224-22225 22235 22238 22248-22249 22262-22263 22268 22804 22863 22873-22874 22876 22884 22993 22995 23030 23580 23638 23645-23646 23704-23706 23738-23739 23762-23763 23768-23769 23821 23823 23840 23849 23851-23852 23854 23951 23962 23972 23974 23976-23977 23979 23993-23996 23998-23999 24217 24220 24266 24321 24337 24339-24341 24344-24345 24359 24361 24368 24387 24393 24450 24476 24554-24555 28715 28718 28728 28730 28800 28802-28803 28812 28817 28819 28822 28828 28830 28832 28834 28872 28874 28879 28889-28891 28919-28920 28926-28927 29092 29094-29095 29097 29106 29112-29114 29118 29165 29167 29204-29205 29456 29460 29504-29505 29508 29510-29512 29517 29521-29524 29528-29529 29532-29533 29535 30215-30216 30218 30220 30235 30242 30244 30263 30312 30352 30356 30358-30359 30407 30413 30438-30439 30469 30609 30612 30614 30622 30644 30646 30654-30655 30687 30701 30704 30709 31812 31864-31865 32085 36956-36957 37128 37161 37209 37215 37230 37236-37238 37240 37245 37327 37330 37333-37334 37339 37341 37343 37348-37350 37359-37360 37362 37364 37370 37373 37375 37693 37707 37711 37718-37722 37726 37729 37738 37744-37746 37750 37753-37755 37821 37823 37832 37834-37835 37842 37849 37854-37855 37857 37859 37865-37868 37870 37872-37874 37889 37891 37897-37899 37902 37912-37913 37920 37923-37924 37927 37929 37934 37938 37944 38018 38048 38069 38405 38408 38418 38537 38562 39129 39131-39132 39189 39199 39201 39204 39216 39219 39222 39231 39233 39235-39236 39244 39246 39249 39259 39266 39270-39271 39273-39276 39297 39299 39311 39326-39327 39347 39349-39350 39364 39366-39367 39404 39413 39700-39701 39751-39752 39754 39757 39759-39760 39766 39780-39782 39789 39801 39803 39805-39807 39871 39876 39882 39899 39906 39908 39914 39916 39972 40069 40071 40487 40579 40603 40610 40616 40631 41455 41592 41595 41598-41599 41613 41624 41655 41658 41662-41663 41670-41671 41678 41681-41682 41691 41697 41701 41703-41704 41733 41744 41748 41750 41754 41756-41757 41763-41765 41768 41770 41773 41775 41780-41781 41799 41802 41805 41808-41810 41812 41816-41817 41856 41860 41877 41879 41994-41995 42151 42160-42161 42163-42164 42166 42168-42169 42208-42210 42217-42218 42221 42230 42232 42300 42374 42380 42400 42405 42417 42421 42434-42438 42453 42455-42456 42460 42462 42470 42483 42486-42487 42496 42500 42588-42589 42611 42614 42983 42994 43016 43018 43024-43025 43029 43031-43032 43034 43041 43050 43088 431041.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/660/A4?format=asciiOpticaldefaultJ/A+A/660/A4/table1Mean parameters for the reported open clustersplxMean Parallaxmaspos.parallax.trigdouble_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster name (OC-NNNN)meta.id.parentcharRA_ICRSMean Right Ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.maine_RA_ICRSRight Ascension standard deviationdegstat.error;pos.eq.radoubleDE_ICRSMean Declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.maine_DE_ICRSDeclination standard deviationdegstat.error;pos.eq.decdoubleGLONMean Galactic longitudedegpos.galactic.lone_GLONGalactic longitude standard deviationdegstat.errordoubleGLATMean Galactic latitudedegpos.galactic.latdoublee_GLATGalactic latitude standard deviationdegstat.errordoubleadegApparent angular sizedegphys.angSizedoublee_plxParallax standard deviationmasstat.error;pos.parallaxdoublepmRAMean Proper motion in right ascensionmas/yrpos.pm;pos.eq.radoublee_pmRAProper motion in right ascension standard deviationmas/yrstat.error;pos.pm;pos.eq.radoublepmDEMean Proper motion in declinationmas/yrpos.pm;pos.eq.decdoublee_pmDEProper motion in declination standard deviationmas/yrstat.error;pos.pm;pos.eq.decdoubleageCluster ageyrtime.agefloate_ageError of Cluster ageyrstat.error;time.agefloatAGExtinctionmagphys.absorptionfloatZMetal fraction of clusterphys.abund.Z;arith.ratiofloatRV? Mean radial velocitykm/sphys.veloc;pos.heliocentricdoublenullables_RV? Standard deviation of RVkm/sstat.stdevdoublenullableNNumber of members foundmeta.numberinto_RVNumber of members used to compute mean radial velocitymeta.numberintJ/A+A/660/A4/table2Members for the reported open clusters_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexedClusterCluster name (OC-NNNN)meta.id.parentcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaEDR3Gaia source_id (rounded numbers to last 2 digits)meta.id;meta.mainRA_ICRSRight Ascension (ICRS) at ep=2016.0degpos.eq.ra;meta.mainindexedDE_ICRSDeclination (ICRS) at ep=2016.0degpos.eq.dec;meta.mainindexedGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleplxParallaxmaspos.parallax.trigdoublepmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.radoublepmDEProper motion in declinationmas/yrpos.pm;pos.eq.decdoubleRV? Radial velocitykm/sphys.veloc;pos.heliocentricdoublenullablee_RV? Error of Radial velocitykm/sstat.errordoublenullableGmagGaia G magnitudemagphot.mag;em.optdoubleBP-RP? Gaia BP-RP colour indexmagphot.color;em.opt.B;em.opt.Rdoublenullable