J/MNRAS/341/805ivo://CDS.VizieR/J/MNRAS/341/805doi:10.26093/cds/vizier.73410805CDSPozzo M.Naylor T.Jeffries R.D.Drew J.E.2024-06-28T20:17:16Z2007-07-16T00:08:07ZCDS support team

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

cds-question@unistra.fropen-star-clustersccd-photometryinfrared-photometryvisible-astronomybroad-band-photometryWe report the discovery of a low-mass pre-main-sequence (PMS) stellar population in the younger subgroup of the Cepheus OB3 association, Cep OB3b, using UBVI CCD photometry and follow-up spectroscopy. The optical survey covers approximately 1300arcmin^2^ on the sky and gives a global photometric and astrometric catalogue for more than 7000 objects. The location of a PMS population is well defined in a V versus (V-I) colour-magnitude diagram.2003MNRAS.341..805Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/341/805CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/341/805https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/341/805http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/341/805https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/341/805https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/341/805http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/341/805GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/341/805/catalog (Photometric catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/341/805/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/341/805/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/341/805/catalog?GETtext/xml+votable180.050000true344.1963791762.727161110.0055555555555555566/15681-15683 15688-15689https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/341/805?format=asciiOpticalInfrareddefaultJ/MNRAS/341/805/catalogPhotometric cataloguerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField and CCD number (1)meta.id;obs.fieldfloatStarStar number in the fieldmeta.id;obs.fieldintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainXposX position in the CCD imagepixpos.cartesian.x;instr.detdoubleYposY position in the CCD imagepixpos.cartesian.y;instr.detdoubleVmag? V magnitudemagphot.mag;em.opt.Vfloatnullablen_Vmag[I] I for +Infmeta.notechare_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.Vfloatf_VmagFlag on Vmag, in flags. dat filemeta.codecharB-VB-V colour indexmagphot.color;em.opt.B;em.opt.Vfloate_B-Vrms uncertainty on B-Vmagstat.error;phot.color;em.opt.Bfloatf_B-VFlag on B-V colour, in flags.dat filemeta.codecharV-IV-I colour indexmagphot.color;em.opt.V;em.opt.Ifloate_V-Irms uncertainty on V-Imagstat.error;phot.color;em.opt.Vfloatf_V-IFlag on V-I colour, in flags.dat filemeta.codecharU-BU-B colour indexmagphot.color;em.opt.U;em.opt.Bfloate_U-Brms uncertainty on U-Bmagstat.error;phot.color;em.opt.Ufloatf_U-BFlag on U-B colour, in flags.dat filemeta.codecharJ/MNRAS/341/805/flagsFlagsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFlagFlag code (1)meta.code.errorcharExplainFlag meaningmeta.notecharAlgorithmAlgorithm usedmeta.notecharTypeType (Strong or Weak)meta.notecharFno? Flag number for the older versions of the softwaremeta.idintnullable