J/MNRAS/435/2474ivo://CDS.VizieR/J/MNRAS/435/2474doi:10.26093/cds/vizier.74352474CDSLodieu N.Dobbie P.D.Cross N.J.G.Hambly N.C.Read M.A.Blake R.P.,Floyd D.J.E.2024-08-06T20:17:04Z2014-11-25T12:11:55ZCDS support team

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

cds-question@unistra.frstellar-associationsinfrared-photometryproper-motionsWe present the results of a deep ZYJ near-infrared survey of 13.5deg^2^ in the Upper Scorpius (USco) OB association. We photometrically selected ~100 cluster member candidates with masses in the range of 30-5 Jupiters, according to state-of-the-art evolutionary models. We identified 67 ZYJ candidates as bona fide members, based on complementary photometry and astrometry. We also extracted five candidates detected with Visible and Infrared Survey Telescope for Astronomy at YJ only. One is excluded using deep optical z-band imaging, while two are likely non-members, and three remain as potential members. We conclude that the USco mass function is more likely decreasing in the planetary-mass regime (although a flat mass function cannot yet be discarded), consistent with surveys in other regions.2013MNRAS.435.2474Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/435/2474CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)J/AJ/120/479 : Low-mass stars in the Upper Sco association (Ardila+, 2000)J/ApJ/651/L49 : Upper Sco OB association IRAC observations (Carpenter+ 2006)J/ApJ/705/1646 : Debris disks in Upper Sco (Carpenter+, 2009)J/A+A/527/A24 : Spectra of low-mass stars in Upper Sco (Lodieu+, 2011)J/ApJ/745/56 : Upper Sco members rotational velocities (Dahm+, 2012)J/ApJ/758/31 : IR photometry for members of Upper Sco (Luhman+, 2012)J/MNRAS/373/95 : ZYJHK survey of Upper Sco association (Lodieu+, 2006)J/MNRAS/374/372 : ZYJHK photometry in Upper Sco (Lodieu+, 2007)J/MNRAS/418/1231 : New brown dwarfs in upper Sco (Dawson+, 2011)J/MNRAS/431/3222 : UKIDSS GCS Upper Sco members (Lodieu, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/435/2474https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/435/2474http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/435/2474https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/435/2474https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/435/2474http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/435/2474GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/435/2474/table2 (USco member candidates in the VISTA deep survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/435/2474/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/435/2474/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/435/2474/table2?GETtext/xml+votable180.050000true239.9015833-22.237750.005555555555555556Cone search capability for table J/MNRAS/435/2474/table3 (USco candidates classified as photometric and/or astrometric non-members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/435/2474/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/435/2474/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/435/2474/table3?GETtext/xml+votable180.050000true239.9065-22.90452780.005555555555555556Cone search capability for table J/MNRAS/435/2474/table4 (Z-band dropouts (or YJ-only) candidates in USco)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/435/2474/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/435/2474/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/435/2474/table4?GETtext/xml+votable180.050000true242.9538333-21.09127780.0055555555555555565/11088-11090 6/42985 42987-42988 42990 44311 44317 44364-44366 44368 443708.305533028865447e-20 2.393642124494231e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/435/2474?format=asciiInfrareddefaultJ/MNRAS/435/2474/table2USco member candidates in the VISTA deep surveyRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainZmag? VISTA Z magnitudemagphot.mag;em.opt.Ifloatnullablee_Zmag? rms uncertainty on Zmagmagstat.error;phot.magfloatnullableYmagVISTA Y magnitudemagphot.mag;em.IR.Jfloate_Ymagrms uncertainty on Ymagmagstat.error;phot.magfloatJmagVISTA J magnitudemagphot.mag;em.IR.Jfloate_Jmagrms uncertainty on Jmagmagstat.error;phot.magfloatHmag? UKIDSS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? rms uncertainty on Hmagmagstat.error;phot.magfloatnullableK1mag? UKIDSS K1 magnitudemagphot.mag;em.IR.Kfloatnullablee_K1mag? rms uncertainty on K1magmagstat.error;phot.magfloatnullableK2mag? UKIDSS K2 magnitudemagphot.mag;em.IR.Kfloatnullablee_K2mag? rms uncertainty on K2magmagstat.error;phot.magfloatnullablepmRA? Proper motion along RAmas/yrpos.pm;pos.eq.rafloatnullablee_pmRA? rms uncertainty on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion along DEmas/yrpos.pm;pos.eq.decfloatnullablee_pmDE? rms uncertainty on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ/MNRAS/435/2474/table3USco candidates classified as photometric and/or astrometric non-membersSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord 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.mainZmag? VISTA Z magnitudemagphot.mag;em.opt.Ifloatnullablee_Zmag? rms uncertainty on Zmagmagstat.error;phot.magfloatnullableYmagVISTA Y magnitudemagphot.mag;em.IR.Jfloate_Ymagrms uncertainty on Ymagmagstat.error;phot.magfloatJmagVISTA J magnitudemagphot.mag;em.IR.Jfloate_Jmagrms uncertainty on Jmagmagstat.error;phot.magfloatHmag? UKIDSS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? rms uncertainty on Hmagmagstat.error;phot.magfloatnullableK1mag? UKIDSS K1 magnitudemagphot.mag;em.IR.Kfloatnullablee_K1mag? rms uncertainty on K1magmagstat.error;phot.magfloatnullableK2mag? UKIDSS K2 magnitudemagphot.mag;em.IR.Kfloatnullablee_K2mag? rms uncertainty on K2magmagstat.error;phot.magfloatnullablepmRA? Proper motion along RAmas/yrpos.pm;pos.eq.rafloatnullablee_pmRA? rms uncertainty on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion along DEmas/yrpos.pm;pos.eq.decfloatnullablee_pmDE? rms uncertainty on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableJ/MNRAS/435/2474/table4Z-band dropouts (or YJ-only) candidates in UScoRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainYmagVISTA Y magnitudemagphot.mag;em.IR.Jfloate_Ymagrms uncertainty on Ymagmagstat.error;phot.magfloatJmagVISTA J magnitudemagphot.mag;em.IR.Jfloate_Jmagrms uncertainty on Jmagmagstat.error;phot.magfloatl_KmagLimit flag on Kmagmeta.code.errorcharKmag? UKIDSS K magnitude (GCS DR10)magphot.mag;em.IR.Kfloatnullablee_Kmag? rms uncertainty on K1magmagstat.error;phot.magfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharn_Kmag[abc] Note on Kmag (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint