J/MNRAS/487/2385ivo://CDS.VizieR/J/MNRAS/487/2385doi:10.26093/cds/vizier.74872385CDSMonteiro H.Dias W.S.2024-08-19T20:18:52Z2023-01-10T13:55:39ZCDS support team

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

cds-question@unistra.fropen-star-clustersvisible-astronomytrigonometric-parallaxproper-motionsstellar-agesstellar-distanceWe investigate a sample of open cluster candidates with no previous age determination using astrometric and photometric data from the Gaia DR2 catalogue. Using proper motions and parallaxes and the full co-variance matrix we determined the astrometric membership probability of the stars in the field of each candidate. The memberships were used as weights in our code based on the cross-entropy global optimization algorithm to fit theoretical isochrones to Gaia photometric data of the open clusters. For 150 open clusters, 49 poorly studied and 101 recently detected, we estimate distances, ages, reddening, and metallicity from the isochrone fits. For the 49 candidates from the New Catalog of Optically Visible Open Clusters and Candidates we also obtain the mean astrometric parameters proper motion, radial velocity, and parallax. The analysis also indicates that 80 candidates are likely not real open clusters.2019MNRAS.487.2385Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/487/2385CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)B/ocl : Optically visible open clusters and CandidatesJ/A+A/618/A93 : Gaia DR2 open clusters in the Milky WayJ/A+A/624/A126 : New open clusters in Perseus directionhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/487/2385https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/487/2385http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/487/2385https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/487/2385https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/487/2385http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/487/2385GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/487/2385/tableb1 (Fundamental parameter results obtained from isochrone fits for the DAML02 open clusters studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/487/2385/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/487/2385/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/487/2385/tableb1?GETtext/xml+votable180.050000true51.762-35.8210.005555555555555556Cone search capability for table J/MNRAS/487/2385/tableb3 (Fundamental parameter results obtained from isochrone fits for the Gulliver open clusters studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/487/2385/tableb3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/487/2385/tableb3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/487/2385/tableb3?GETtext/xml+votable180.050000true161.582-57.0340.005555555555555556Cone search capability for table J/MNRAS/487/2385/tableb4 (Fundamental parameter results obtained from isochrone fits for the COIN open clusters studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/487/2385/tableb4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/487/2385/tableb4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/487/2385/tableb4?GETtext/xml+votable180.050000true11.93366.7690.0055555555555555566/1276-1277 1283 1287 1296-1298 1305 1311 1317-1318 1332 1339 1353 1383 1386 1446 1451 1718 1781 1794 3009 3055 3097 3145 3201 3263 3276 3312 3337 3596 3598 3601 3604 3613-3614 3622 3626 3628 3636 3680 3718 3738 3783 3884 4298 10338 12943 13048 13055 14294 14315 14321-14322 14324 14358 14384 14627 14629 14643-14644 14650 15371 15376-15377 15412 20957 21311 21540 21561 22107 22224 22859 23632 23641 23665 23784 23807 23979 24130 24333 24345 24350 24367 24378 24387 24449 24461 24470 24496 24513 28830 29456 29509 30717 31853 34538 37244-37245 37348 37368 37711 37724 37789 37845 37869 37882 37895 37927 37935 37938 38016 38020 38023 38048 39191 39216 39273 39290 39369 39371 39374 39386 39397 39785 39805 39871 41652 41678 42164 42435 42448 42456 42470 43022 43026 43040 43048 43137https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/487/2385?format=asciiOpticaldefaultJ/MNRAS/487/2385/tableb1Fundamental parameter results obtained from isochrone fits for the DAML02 open clusters studiedSimbadNameSimbad column added by the CDSmeta.idcharnullableRvTotal-to-selective extinction ratio, Rv=Av/E(B-V)phys.absorption.gal;arith.ratiofloate_RvError on Rvstat.errorfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullableNameCluster namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlogAgeLogarithm of the cluster agelog(yr)time.agefloate_logAgeError on logAgelog(yr)stat.error;time.agefloatDistDistancekpcpos.distancefloate_DistError on Distkpcstat.errorfloatZMetallicityphys.abund.Zfloate_ZError on Zstat.error;src.redshiftfloatE(B-V)E(B-V) colour excessmagphot.color.excessfloate_E(B-V)Error on E(B-V)magstat.errorfloatJ/MNRAS/487/2385/tableb2Astrometric parameter results obtained for the DAML02 open clusters studiedplxParallaxmaspos.parallax.trigfloate_plxError on plxmasstat.error;pos.parallaxfloatRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV? Error on RVkm/sstat.errorfloatnullableNcNumber of cluster membersmeta.numberintsigRAStandard deviation of the distribution in right ascensionstat.stdevfloate_sigRAError on sigRAstat.errorfloatsigDEStandard deviation of the distribution in declinationstat.stdevfloate_sigDEError on sigDEstat.errorfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster namemeta.id;meta.mainchare_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.decfloatJ/MNRAS/487/2385/tableb3Fundamental parameter results obtained from isochrone fits for the Gulliver open clusters studiedDistDistancekpcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster name, Gulliver NN (Cl Gulliver NN in Simbad)meta.id;meta.maincharlogAgeLogarithm of the cluster agelog(yr)time.agefloate_logAgeError on logAgelog(yr)stat.error;time.agefloate_DistError on Distkpcstat.errorfloatZMetallicityphys.abund.Zfloate_ZError on Zstat.error;src.redshiftfloatE(B-V)E(B-V) colour excessmagphot.color.excessfloate_E(B-V)Error on E(B-V)magstat.errorfloatRvTotal-to-selective extinction ratio, Rv=Av/E(B-V)phys.absorption.gal;arith.ratiofloate_RvError on Rvstat.errorfloat_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.mainSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/487/2385/tableb4Fundamental parameter results obtained from isochrone fits for the COIN open clusters studiede_RvError on Rvstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCluster name, COINNN ([CKS2019] COIN-Gaia NN in Simbad)meta.id;meta.maincharlogAgeLogarithm of the cluster agelog(yr)time.agefloate_logAgeError on logAgelog(yr)stat.error;time.agefloatDistDistancekpcpos.distancefloate_DistError on Distkpcstat.errorfloatZMetallicityphys.abund.Zfloate_ZError on Zstat.error;src.redshiftfloatE(B-V)E(B-V) colour excessmagphot.color.excessfloate_E(B-V)Error on E(B-V)magstat.errorfloatRvTotal-to-selective extinction ratio, Rv=Av/E(B-V)phys.absorption.gal;arith.ratiofloat_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.mainSimbadSimbad column added by the CDSmeta.ref.urlchar