J/MNRAS/373/95ivo://CDS.VizieR/J/MNRAS/373/95doi:10.26093/cds/vizier.73730095CDSLodieu N.Hambly N.C.Jameson R.F.2024-07-04T20:17:43Z2007-10-06T21:37:33ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryWe present the results of a 9.3-deg^2^ infrared (ZYJHK) survey in the Upper Scorpius association extracted from the UKIRT Infrared Deep Sky Survey (UKIDSS) Galactic Cluster Survey Early Data Release (Dye et al., 2006MNRAS.372.1227D). We have selected a total of 112 candidates from the (Z-J, Z) colour-magnitude diagram over the Z=12.5-20.5 magnitude range, corresponding to M=0.25-0.01M_{sun}_ at an age of 5Myr and a distance of 145pc. Additional photometry in J and K filters revealed most of them as reddened stars, leaving 32 possible members. Among them, 15 have proper motion consistent with higher-mass members from Hipparcos and optical spectra with strong H{alpha} in emission and weak gravity features. We have also extracted two lower-mass candidate members for which no optical spectra are in hand. Three members exhibit strong H{alpha} equivalent widths (>20{AA}), suggesting that they could still undergo accretion, whereas two other dwarfs show signs of chromospheric activity. The likelihood of the binarity of a couple of new stellar and substellar members is discussed as well.2006MNRAS.373...95Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/373/95CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/464/581 : Sco OB2 intermediate-mass stars (Kouwenhoven+, 2007)J/AJ/124/404 : Upper Sco OB association Lithium survey. II. (Preibisch, 2002)J/AJ/121/1040 : PMS members of upper Scorpius OB association (Preibisch+, 2001)http://surveys.roe.ac.uk/wsa : UKIDSS DR2 Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/373/95https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/373/95http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/373/95https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/373/95https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/373/95http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/373/95GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/373/95/table2 (*All 112 photometric candidates selected from the (Z-J, Z) CMD in 9.3deg^2^ in the Upper Sco association.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/373/95/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/373/95/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/373/95/table2?GETtext/xml+votable180.050000true237.9462083-21.22322220.0055555555555555565/10749 6/29344 42962 42984 43001 43004 43006 44341-44343 44384 44386https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/373/95?format=asciiInfrareddefaultJ/MNRAS/373/95/table2*All 112 photometric candidates selected from the (Z-J, Z) CMD in 9.3deg^2^ in the Upper Sco association.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainZmagZ (0.8817um) magnitude from GCS (1)magphot.mag;em.opt.IfloatYmagY (1.0305um) magnitude from GCS (1)magphot.mag;em.opt.IfloatJmagJ (1.2483um) magnitude from GCS (1)magphot.mag;em.IR.JfloatHmagH (1.6313um) magnitude from GCS (1)magphot.mag;em.IR.HfloatKmagK (2.2010um) magnitude from GCS (1)magphot.mag;em.IR.KfloatpmRAProper motion along RA, mu{alpha}*cos{delta} (2)mas/yrpos.pm;pos.eq.radoublepmDEProper motion along DE, mu{delta} (2)mas/yrpos.pm;pos.eq.decfloat