J/MNRAS/486/1034ivo://CDS.VizieR/J/MNRAS/486/1034doi:10.26093/cds/vizier.74861034CDSDrew J.E.Monguio M.Wright N.J.2024-08-19T20:18:05Z2022-12-08T13:46:30ZCDS support team

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

cds-question@unistra.fro-starsearly-type-starsopen-star-clustersastrometryproper-motionseffective-temperaturevisible-astronomyThe very bright and compact massive young cluster, NGC 3603, has been cited as an example of a starburst in the Milky Way and compared with the much-studied R136/30 Doradus region in the Large Magellanic Cloud. Here we build on the discovery by Mohr-Smith et al. of a large number of reddened O stars around this cluster. We construct a list of 288 candidate O stars with proper motions (PMs), in a region of sky spanning 1.5x1.5deg^2^ centred on NGC 3603, by cross-matching the Mohr-Smith et al. catalogue with Gaia DR2. This provides the basis for a first comprehensive examination of the PMs of these massive stars in the halo of NGC 3603, relative to the much better studied central region. We identify up to 11 likely O star ejections - 8 of which would have been ejected between 0.60 and 0.95Myr ago (supporting the age of ~1Myr that has been attributed to the bright cluster centre). Seven candidate ejections are arranged in a partial ring to the south of the cluster core spanning radii of 9-18arcmin (18-36pc if the cluster is 7kpc away). We also show that the cluster has a halo of a further ~100 O stars extending to a radius of at least 5arcmin, adding to the picture of NGC 3603 as a scaled down version of the R136/30 Dor region.2019MNRAS.486.1034Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/486/1034CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/MNRAS/465/1807 : Deep OB star population in Carina (Mohr-Smith+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/486/1034https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/486/1034http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/486/1034https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/486/1034https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/486/1034http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/486/1034GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/486/1034/tableb1 (Complete 288 candidate O stars obtained by cross-matching MS-II and Gaia DR2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/486/1034/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/486/1034/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/486/1034/tableb1?GETtext/xml+votable180.050000true167.4509583-60.86480.0055555555555555566/37921-379261.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/486/1034?format=asciiOpticaldefaultJ/MNRAS/486/1034/tableb1Complete 288 candidate O stars obtained by cross-matching MS-II and Gaia DR2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameMS-II object identifier (NNNNN) (1)meta.idintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainlogTeffLogarith of the effective temperature (1)log(K)phys.temperature.effectivefloatA0Monochromatic extinction at 5495{AA} (1)magphys.absorptionfloatGaiaDR2Gaia DR2 source identifiermeta.id;meta.mainplxParallaxmaspos.parallax.trigdoubleGmagGaia DR2 G-band magnitudemagphot.mag;em.optfloatRadiusAngular distance from the adopted cluster centre, at (l=291.617{deg},b=-0.523{deg})arcsecpos.angDistancefloatrpmGLONRelative proper motion in galactic longitude relative to the core-region meanmas/yrpos.pmfloatrpmGLATRelative proper motion in galactic latitude relative to the core-region meanmas/yrpos.pmfloatrpmTotal relative proper motion magnitudemas/yrpos.pmfloatIPTrajectory impact parameterarcminsrc.impactParamfloate_IPError on IParcminstat.errorfloat