J/MNRAS/502/L90ivo://CDS.VizieR/J/MNRAS/502/L90doi:10.26093/cds/vizier.75029090CDSFerreira F.A.Corradi W.J.B.Maia F.F.S.Angelo M.S.Santos J.F.C. Jr.2024-08-21T20:17:22Z2021-02-11T13:16:27ZCDS support team

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

cds-question@unistra.frmilky-way-galaxystellar-associationsproper-motionsvisible-astronomytrigonometric-parallaxWe report the discovery of 34 new open clusters and candidates as a result of a systematic search carried out in 200 adjacent fields of 1x1 square degrees area projected towards the Galactic bulge, using Gaia DR2 data. The objects were identified and characterized by a joint analysis of their photometric, kinematic and spatial distribution, which has been consistently used and proved to be effective in our previous works. The discoveries were validated by cross-referencing the objects position and astrometric parameters with the available literature. Besides their coordinates and astrometric parameters, we also provide sizes, ages, distances and reddening for the discovered objects. In particular, 32 clusters are closer than 2kpc from the Sun, which represents an increment of nearly 39% of objects with astrophysical parameters determined in the nearby inner disk. Although these objects fill an important gap in the open clusters distribution along the Sagittarius arm, this arm, traced by known clusters, appears to be interrupted, which may be an artifact due to the incompleteness of the cluster census.2021MNRAS.502L..90Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/502/L90CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/502/L90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/502/L90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/502/L90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/502/L90https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/502/L90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/502/L90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/502/L90/param (Open clusters parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/502/L90/param?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/502/L90/param?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/502/L90/param?GETtext/xml+votable180.050000true263.4-25.01010.005555555555555556Cone search capability for table J/MNRAS/502/L90/members (Open clusters members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/502/L90/members?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/502/L90/members?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/502/L90/members?GETtext/xml+votable180.050000true263.3282851-24.99907650.0055555555555555565/7208 6/28714 28719 28728 28730 28778-28779 28800 28803 28808-28809 28821-28823 28826 28829 28836-28837 28848 28854 28864 28866 28872-28873 28877 28889 28900 28903 28909 28911 28915 28917-28921 28924 28926-28927 29088 29204-29205 29253 42448 42455 42460 42462 42483 42485 42487https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/502/L90?format=asciiOpticaldefaultJ/MNRAS/502/L90/paramOpen clusters parameterse_DmodDistance modulus uncertaintymagstat.errorfloatlogtAgelog(yr)time.agefloate_logtAge uncertaintylog(yr)stat.errorfloatpmRAMean proper motion along RA of members, pmRA*cosDEmas/yrpos.pm;pos.eq.radoubles_pmRAStandard deviation of pmRA of membersmas/yrstat.stdev;pos.pm;pos.eq.radoublepmDEMean proper motion along DE of membersmas/yrpos.pm;pos.eq.decdoubles_pmDEStandard deviation of pmDE of membersmas/yrstat.stdev;pos.pm;pos.eq.decdoubleplxMean parallax of membersmaspos.parallax.trigdoubles_plxStandard deviation of plx of membersmasstat.stdev;pos.parallaxdoubleGLONCluster galactic longitudedegpos.galactic.lonGLATCluster galactic latitudedegpos.galactic.latdoubleXPosition X in Galactic cartesian coordinateskpcpos.distance;pos.cartesian.x;pos.galacticdoubleyPosition Y in Galactic cartesian coordinateskpcpos.distance;pos.cartesian.y;pos.galacticdoublezPosition Z in Galactic cartesian coordinateskpcpos.distance;pos.cartesian.z;pos.galacticdoubleRGCDistance from Galactic centre assuming the Sun is at 8340pckpcpos.distance;pos.galactocentricdoublerlimLimiting radius, defined as the radius where the stellar density reaches the sky levelarcsecphys.angSize;srcdoublee_rlimLimiting radius uncertaintyarcsecstat.errordoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharCluster[4/44] Internal id to relate the memberlist to the clustersmeta.idintNameUFMG name (UFMGNN)meta.id;meta.maincharRAJ2000Cluster right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Cluster declination (J2000)degpos.eq.dec;meta.mainE(B-V)Colour excessmagphot.color.excessfloate_E(B-V)Colour excess uncertaintymagstat.errorfloatDmodDistance modulusmagphot.mag.distModfloatDistDistance in pcpcpos.distancedoubleJ/MNRAS/502/L90/membersOpen clusters membersSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCluster[4/44] Internal id to relate the memberlist to the clustersmeta.idintGaiaDR2Gaia DR2 star IDmeta.id;meta.mainRA_ICRSRight ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainplxAbsolute stellar parallaxmaspos.parallax.trigfloate_plxStandard error of parallaxmasstat.error;pos.parallaxfloatpmRAProper motion in right ascension direction, pmRA*cosDEmas/yrpos.pm;pos.eq.rafloate_pmRAStandard error of proper motion in right ascensionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in declination directionmas/yrpos.pm;pos.eq.decfloate_pmDEStandard error of proper motion in declinationmas/yrstat.error;pos.pm;pos.eq.decfloatGmagG-band mean magnitudemagphot.mag;em.optfloate_GmagStandard error of G-band mean magnitudemagstat.error;phot.magdoubleBPmagIntegrated BP mean magnitude (Vega)magphot.mag;em.opt.Bfloate_BPmagStandard error of BP mean magnitude (Vega)magstat.error;phot.magdoubleRPmagIntegrated RP mean magnitude (Vega)magphot.mag;em.opt.Rfloate_RPmagStandard error of RP mean magnitude (Vega)magstat.error;phot.magdoubleE(BP/RP)BP/RP excess factormagphot.color.excessfloatNperNumber of visibility periods used in Astrometric solutionmeta.numberfloatpmRApmDEcorCorrelation between proper motion in right ascension and proper motion in declinationstat.correlationdoubleplxpmRAcorCorrelation between parallax and proper motion in right ascensionstat.correlationdouble_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.decnullableindexedNgALNumber of good observations ALmeta.numberfloatchi2chi^2^ valuestat.fit.chi2;stat.valuefloatplxpmDECcorCorrelation between parallax and proper motion in declinationstat.correlationdoublePmembMembership probabilitystat.probabilitydoubleFmemb[1] Flag membershipmeta.codeint