J/MNRAS/481/3902ivo://CDS.VizieR/J/MNRAS/481/3902doi:10.26093/cds/vizier.74813902CDSBorissova J.Ivanov V.D.Lucas P.W.Kurtev R.Alonso-Garcia J.,Ramirez Alegria S.Minniti D.Froebrich D.Hempel M.Medina N.,Chene A.-N.Kuhn M.A.2024-08-19T20:14:19Z2022-07-07T14:27:09ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-astronomyphotometryastrometryThe 'VISTA Variables in the Via Lactea eXtended (VVVX)' ESO Public Survey is a near-infrared photometric sky survey that covers nearly 1700deg^2^ towards the Galactic disc and bulge. It is well-suited to search for new open clusters, hidden behind dust and gas. The pipeline processed and calibrated KS-band tile images of 40 per cent of the disc area covered by VVVX was visually inspected for stellar overdensities. Then, we identified cluster candidates by examination of the composite JHKS colour images. The colour-magnitude diagrams of the cluster candidates are constructed. Whenever possible the Gaia DR2 parameters are used to calculate the mean proper motions, radial velocities, reddening and distances. We report the discovery of 120 new infrared clusters and stellar groups. Approximately half of them (47 per cent) are faint, compact, highly reddened, and they seem to be associated with other indicators of recent star formation, such as nearby Young Stellar Objects, Masers, HII regions or bubbles. The preliminary distance determinations allow us to trace the clusters up to 4.5kpc, but most of the cluster candidates are centred at 2.2kpc. The mean proper motions of the clusters show that in general they follow the disc motion of the Galaxy.2018MNRAS.481.3902Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/481/3902CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/481/3902https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/481/3902http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/481/3902https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/481/3902https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/481/3902http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/481/3902GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/481/3902/table1 (Parameters of stars with spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/481/3902/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/481/3902/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/481/3902/table1?GETtext/xml+votable180.050000true192.66456-64.916430.005555555555555556Cone search capability for table J/MNRAS/481/3902/tablea1 (VVVX cluster candidates: catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/481/3902/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/481/3902/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/481/3902/tablea1?GETtext/xml+votable180.050000true180.38077-65.137201940.005555555555555556Cone search capability for table J/MNRAS/481/3902/tableb1 (VVVX cluster candidates: parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/481/3902/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/481/3902/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/481/3902/tableb1?GETtext/xml+votable180.050000true184.27694-60.2201450.0055555555555555565/7278 7360 7377 6/29070 29090-29092 29094-29096 29100-29101 29103-29104 29118 29461 29463 29469 29504-29506 29513 29515 41455 41467-41468 41470 41582 41589 41592 41628 41646 41650 41666 41708 41742 41793 41844 41860-41861 42152-42153 42160 42190 42200 42233 42236 42303 42346 42360 42363 42385 42402 42406-42407 42419 42464 42505 42515 42520 43010 43031 43033-43035 43047 430497.952274030004205e-20 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/481/3902?format=asciiInfrareddefaultJ/MNRAS/481/3902/table1Parameters of stars with spectrae_pmRAError on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatSimbadSimbad column added by the CDSmeta.ref.urlcharNameStar name ([BIL2018] CLNNN ObjN)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainplxParallaxmaspos.parallax.trigfloate_plxError on plxmasstat.error;pos.parallaxfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEError on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatGmagGaia DR2 G-band magnitudemagphot.mag;em.optfloate_GmagError on Gmagmagstat.error;phot.magfloatTeffEffective temperatureKphys.temperature.effectivefloatSpTypeSpectral typesrc.spTypecharJmagMagnitude on the J-bandmagphot.mag;em.IR.Jfloate_JmagError on Jmagmagstat.error;phot.magfloatHmagMagnitude on the H-bandmagphot.mag;em.IR.Hfloate_HmagError on Hmagmagstat.error;phot.magfloatKsmagMagnitude on the Ks-bandmagphot.mag;em.IR.Kfloate_KsmagError on Ksmagmagstat.error;phot.magfloatE(J-K)Mean reddeningmagphot.color.excessfloatDistDistancekpcpos.distancefloatJ/MNRAS/481/3902/tablea1VVVX cluster candidates: cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintparamindicates parameters in tableb1.datmeta.ref.urlcharNameName of the VVVX cluster candidate (VVVX CLNNN)meta.id;meta.maincharprimaryRAJ2000Right ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (1)degpos.eq.dec;meta.mainRadEye-ball measured apparent cluster radiusarcsecphys.angSize;srcintVVVXtileName of the corresponding VVVX tileobs.fieldcharCommentsComments about the nature of the objectmeta.notecharJ/MNRAS/481/3902/tableb1VVVX cluster candidates: parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainpmRA? Proper motion in right ascension {mu}_{alpha}*cos{delta}mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA? Error on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion in declinationmas/yrpos.pm;pos.eq.decfloatnullablee_pmDE? Error on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableplx? Parallaxmaspos.parallax.trigfloatnullablee_plx? Error on parallaxmasstat.error;pos.parallaxfloatnullableDist? Distancekpcpos.distanceintnullableDistp5? 5th percentile of Distkpcpos.distanceintnullableDistp95? 95th percentile of Distkpcpos.distanceintnullableRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV? Error on RVkm/sstat.errorfloatnullableBP-RP? Gaia DR2 BP-RP colormagphot.color;em.opt.B;em.opt.Rfloatnullablee_BP-RP? Error on BP-RPmagstat.errorfloatnullableNameName of the VVVX cluster candidate (VVVX CLNNN)meta.id;meta.mainchar