J/MNRAS/477/L50ivo://CDS.VizieR/J/MNRAS/477/L50doi:10.26093/cds/vizier.74779050CDSGalli P.A.B.Joncour I.Moraux E.2024-08-18T20:19:33Z2018-06-08T12:31:30ZCDS support team

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

cds-question@unistra.fropen-star-clustersproper-motionsstellar-distancevisible-astronomytrigonometric-parallaxparallaxspectroscopyradial-velocityUsing new proper motion data from recently published catalogs, we revisit the membership of previously identified members of the Upper Scorpius association. We confirmed 750 of them as cluster members based on the convergent point method, compute their kinematic parallaxes and combined them with Gaia parallaxes to investigate the 3D structure and geometry of the association using a robust covariance method. We find a mean distance of 146+/-3+/-6pc and show that the morphology of the association defined by the brightest (and most massive) stars yields a prolate ellipsoid with dimensions of 74x38x32pc^3^, while the faintest cluster members define a more elongated structure with dimensions of 98x24x18pc^3^. We suggest that the different properties of both populations is an imprint of the star formation history in this region.2018MNRAS.477L..50Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/477/L50CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/320 : SPM 4.0 Catalog (Girard+, 2011)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/339 : Hot Stuff for One Year (HSOY) (Altmann+, 2017)I/340 : UCAC5 Catalogue (Zacharias+ 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/477/L50https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/477/L50http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/477/L50https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/477/L50https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/477/L50http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/477/L50GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/477/L50/table1 (Properties of the stars in the Upper Scorpius region)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/477/L50/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/477/L50/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/477/L50/table1?GETtext/xml+votable180.050000true232.590125-20.61336670.0055555555555555564/2686 2769 2772 5/7680 10702 10727 10732-10733 10737-10739 10748 10750 11075 11085 11092 11094 11096-11097 11100 6/29219 29229 29231 29320 29348 29352 29355 29358 30726 30728-30729 30732-30734 30757-30758 30760 42734 42746 42749 42799 42812 42819 42848 42851 42854 42857-42859 42873 42875-42876 42885-42886 42891-42892 42896 42900-42901 42903 42906-42907 42912-42913 42916-42917 42923-42924 42939-42941 42943 42945-42947 42960 42962 42964 42968-42970 42972 42998-42999 43004-43006 44101 44114 44118-44119 44288-44289 44292-44293 44295 44297 44299 44321 44323-44324 44329 44333 44337-44338 44350 44372 44374 44381 44393 44397-44399 44404 44407-44410 44412 44415 44421 44433-44434 44436 44439 44469 44480-44481 44483 44487 44497 44502 44508-44509https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/477/L50?format=asciiOpticaldefaultJ/MNRAS/477/L50/table1Properties of the stars in the Upper Scorpius regionSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (JHHMMSSss+DDMMSSs) or WISE identifier (WISEJHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainpmRA? Proper motion in RA (pmRA*cos(DE))mas/yrpos.pm;pos.eq.radoublenullablee_pmRA? Error on proper motion in RAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion in DEmas/yrpos.pm;pos.eq.decdoublenullablee_pmDE? Error on proper motion in DEmas/yrstat.error;pos.pm;pos.eq.decfloatnullabler_pmReference for proper motion measurement (HSOY, TGAS, SPM4 or UCAC5)meta.ref;pos.framecharRV? Radial velocitykm/sspect.dopplerVelocfloatnullablee_RV? Error on radial velocitykm/sstat.errorfloatnullabler_RV? Reference for radial velocity (1)meta.ref;pos.frameintnullableplxKIN? Kinematic parallaxmaspos.parallax.dynfloatnullablee_plxKIN? Error on kinematic parallaxmasstat.errorfloatnullableplxTRIG? Trigonometric parallaxmaspos.parallax.trigfloatnullablee_plxTRIG? Error on trigonometric parallaxmasstat.errorfloatnullableUVel? U component of the spatial velocitykm/sphys.veloc;pos.cartesian.xfloatnullablee_UVel? Lower error on the U componentkm/sstat.errorfloatnullableE_UVel? Upper error on the U componentkm/sstat.error;stat.maxfloatnullableVVel? V component of the spatial velocitykm/sphys.veloc;pos.cartesian.yfloatnullablee_VVel? Lower error on the V componentkm/sstat.errorfloatnullableE_VVel? Upper error on the V componentkm/sstat.error;stat.maxfloatnullableWVel? W component of the spatial velocitykm/sphys.veloc;pos.cartesian.zfloatnullablee_WVel? Lower error on the W componentkm/sstat.errorfloatnullableE_WVel? Upper error on the W componentkm/sstat.error;stat.maxfloatnullableCPSM[Y/N] Membership in Upper Scorpius (2)meta.code.membercharCTRL[Y/N] Control sample status (3)meta.codechar