UKIDSS GCS Upper Sco members

UKIDSS GCS Upper Sco membersJ/MNRAS/431/3222ivo://CDS.VizieR/J/MNRAS/431/3222doi:10.26093/cds/vizier.74313222CDSLodieu N.2024-07-21T20:14:52Z2013-05-10T12:04:21ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryproper-motionsWe present the results of a proper motion wide-field near-infrared survey of the entire Upper Sco (USco) association (about 160 square degrees) released as part of the UKIRT Infrared Deep Sky (UKIDSS) Galactic Clusters Survey (GCS) Data Release 10 (DR10). We have identified a sample of about 400 astrometric and photometric member candidates combining proper motions and photometry in five near-infrared passbands and another 286 with HK photometry and 2MASS/GCS proper motions. We also provide revised membership for all previously published USco low-mass stars and substellar members based on our selection and identify new candidates, including in regions affected by extinction. We find negligible variability between the two K-band epochs, below the 0.06mag rms level. We estimate an upper limit of 2.2% for wide common proper motions with projected physical separations less than 15000AU. We derive a disk frequency for USco low-mass stars and brown dwarfs between 26 and 37%, in agreement with estimates in IC 348 and sigma Ori. We derive the mass function of the association and find it consistent with the (system) mass function of the solar neighbourhood and other clusters surveyed by the GCS in the 0.2-0.03M_{sun}_ mass range. We confirm the possible excess of brown dwarfs in USco.2013MNRAS.431.3222Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/431/3222CatalogResearchIsServedByTAP 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/A+A/504/981 : Proper motions of cool stars in Upper Sco OB (Bouy+, 2009)J/ApJ/703/1511 : Wide binaries in Taurus and Upper Sco (Kraus+, 2009)J/ApJ/705/1646 : Debris disks in Upper Sco (Carpenter+, 2009)J/AJ/139/1338 : UV-selected stars in Tau and Upper Sco (Findeisen+, 2010)J/MNRAS/418/1231 : New brown dwarfs in upper Sco (Dawson+, 2011)J/MNRAS/373/95 : ZYJHK survey of Upper Sco association (Lodieu+, 2006)J/MNRAS/374/372 : ZYJHK photometry in Upper Sco (Lodieu+, 2007)J/A+A/527/A24 : Spectra of low-mass stars in Upper Sco (Lodieu+, 2011)J/MNRAS/422/1495 : UKIDSS GCS Pleiades members (Lodieu+ 2012)J/MNRAS/426/3419 : UKIDSS GCS Praesepe members (Boudreault+ 2012)J/MNRAS/426/3403 : UKIDSS GCS alpha Persei members (Lodieu+, 2012)http://www.ukidss.org/surveys/surveys.html : UKIDSS Surveyshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/431/3222https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/431/3222http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/431/3222https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/431/3222https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/431/3222http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/431/3222GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/431/3222/tablea1 (USco candidates from GCS DR10 pm region devoid of reddening)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/3222/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/3222/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/3222/tablea1?GETtext/xml+votable180.050000true235.3605833-26.223750.005555555555555556Cone search capability for table J/MNRAS/431/3222/tableb1 (USco candidates from GCS DR10 pm region affected by reddening)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/3222/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/3222/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/3222/tableb1?GETtext/xml+votable180.050000true244.086375-25.29169440.005555555555555556Cone search capability for table J/MNRAS/431/3222/tablec1 (USco candidates from GCS Science Verification)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/3222/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/3222/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/3222/tablec1?GETtext/xml+votable180.050000true241.515625-22.3250.005555555555555556Cone search capability for table J/MNRAS/431/3222/tabled1 (USco candidates from GCS HK-only)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/3222/tabled1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/3222/tabled1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/3222/tabled1?GETtext/xml+votable180.050000true235.0425833-24.52177780.005555555555555556Cone search capability for table J/MNRAS/431/3222/tablee1 (USco candidates from GCS with WISE photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/3222/tablee1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/3222/tablee1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/3222/tablee1?GETtext/xml+votable180.050000true235.0425833-24.52177780.005555555555555556Cone search capability for table J/MNRAS/431/3222/table3 (Potential variable candidates in our USco ZYJHK-pm sample of low-mass stars and brown dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/3222/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/3222/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/3222/table3?GETtext/xml+votable180.050000true238.141375-26.85344440.0055555555555555564/2683-2684 2769 2772 5/10727 10731 10742 10744 10746 11075 11085 11094 11096 6/29355 30720-30721 30723 30729 30731 42903 42919 42923 42962 42972 42974-42975 42980-42982 42988 42990-42992 42997-42998 43001 43004 44289 44291-44294 44325 44336-44338 44350 44368 44370-44371 44375 44380 44388-44390 44392 44397 44400-44402 44404 44408 44410 444128.157980699529898e-21 2.3717893470513554e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/431/3222?format=asciiInfrareddefaultJ/MNRAS/431/3222/tablea1USco candidates from GCS DR10 pm region devoid of reddeningrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRSimbad column added by the CDSmeta.notecharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainWSimbad column added by the CDSmeta.noteintnullableZmagUKIDSS Z-band magnitudemagphot.mag;em.IR.Jfloate_ZmagError on the Z-band magnitudemagstat.error;phot.mag;em.opt.IfloatYmag? UKIDSS Y-band magnitudemagphot.mag;em.IR.Jfloatnullablee_Ymag? Error on the Y-band magnitudemagstat.error;phot.mag;em.opt.BfloatnullableJmagUKIDSS J-band magnitudemagphot.mag;em.IR.Jfloate_JmagError on the J-band magnitudemagstat.error;phot.mag;em.IR.JfloatHmagUKIDSS H-band magnitudemagphot.mag;em.IR.Hfloate_HmagError on the H-band magnitudemagstat.error;phot.mag;em.IR.HfloatK1magUKIDSS K1-band magnitude from first epochmagphot.mag;em.IR.Kfloate_K1magError on the K1-band magnitudemagstat.error;phot.mag;em.IR.KfloatK2magUKIDSS K2-band magnitude from second epochmagphot.mag;em.IR.Kfloate_K2magError on the K2-band magnitudemagstat.error;phot.mag;em.IR.KfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAError on the proper motion in right ascensionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEError on the proper motion in declinationmas/yrstat.error;pos.pm;pos.eq.decfloatchi2{chi}^2^ of the astrometric solutionstat.fit.chi2floatGCS9Display the UKIDSS GCS-DR9 data, Cat. II/319meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar

J/MNRAS/431/3222/tableb1USco candidates from GCS DR10 pm region affected by reddeningRSimbad column added by the CDSmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainWSimbad column added by the CDSmeta.noteintnullableZmagUKIDSS Z-band magnitudemagphot.mag;em.IR.Jfloate_ZmagError on the Z-band magnitudemagstat.error;phot.mag;em.opt.IfloatYmag? UKIDSS Y-band magnitudemagphot.mag;em.IR.Jfloatnullablee_Ymag? Error on the Y-band magnitudemagstat.error;phot.mag;em.opt.BfloatnullableJmagUKIDSS J-band magnitudemagphot.mag;em.IR.Jfloate_JmagError on the J-band magnitudemagstat.error;phot.mag;em.IR.JfloatHmagUKIDSS H-band magnitudemagphot.mag;em.IR.Hfloate_HmagError on the H-band magnitudemagstat.error;phot.mag;em.IR.HfloatK1magUKIDSS K1-band magnitude from first epochmagphot.mag;em.IR.Kfloate_K1magError on the K1-band magnitudemagstat.error;phot.mag;em.IR.KfloatK2magUKIDSS K2-band magnitude from second epochmagphot.mag;em.IR.Kfloate_K2magError on the K2-band magnitudemagstat.error;phot.mag;em.IR.KfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAError on the proper motion in right ascensionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEError on the proper motion in declinationmas/yrstat.error;pos.pm;pos.eq.decfloatchi2{chi}^2^ of the astrometric solutionstat.fit.chi2floatGCS9Display the UKIDSS GCS-DR9 data, Cat. II/319meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar

J/MNRAS/431/3222/tablec1USco candidates from GCS Science VerificationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainWSimbad column added by the CDSmeta.noteintnullableZmagUKIDSS Z-band magnitudemagphot.mag;em.IR.Jfloate_ZmagError on the Z-band magnitudemagstat.error;phot.mag;em.opt.IfloatYmag? UKIDSS Y-band magnitudemagphot.mag;em.IR.Jfloatnullablee_Ymag? Error on the Y-band magnitudemagstat.error;phot.mag;em.opt.BfloatnullableJmagUKIDSS J-band magnitudemagphot.mag;em.IR.Jfloate_JmagError on the J-band magnitudemagstat.error;phot.mag;em.IR.JfloatHmagUKIDSS H-band magnitudemagphot.mag;em.IR.Hfloate_HmagError on the H-band magnitudemagstat.error;phot.mag;em.IR.HfloatK1magUKIDSS K1-band magnitude from first epochmagphot.mag;em.IR.Kfloate_K1magError on the K1-band magnitudemagstat.error;phot.mag;em.IR.KfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloatGCS9Display the UKIDSS GCS-DR9 data, Cat. II/319meta.ref.urlchar

J/MNRAS/431/3222/tabled1USco candidates from GCS HK-onlyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainWSimbad column added by the CDSmeta.noteintnullableHmagUKIDSS H-band magnitudemagphot.mag;em.IR.Hfloate_HmagError on the H-band magnitudemagstat.error;phot.mag;em.IR.HfloatKmagUKIDSS K-band magnitudemagphot.mag;em.IR.Kfloate_KmagError on the K-band magnitudemagstat.error;phot.mag;em.IR.KfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloatGCS9Display the UKIDSS GCS-DR9 data, Cat. II/319meta.ref.urlchar

J/MNRAS/431/3222/tablee1USco candidates from GCS with WISE photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainW1magWISE w1-band (3.35um) magnitudemagphot.mag;em.IR.3-4umfloate_W1magError on the w1-band magnitudemagstat.error;phot.magfloatW2magWISE w2-band (4.6um) magnitudemagphot.mag;em.IR.4-8umfloate_W2magError on the w2-band magnitudemagstat.error;phot.magfloatW3magWISE w3-band (11.6um) magnitudemagphot.flux.density;em.IR.8-15umfloate_W3magError on the w3-band magnitudemagstat.error;phot.magfloatW4magWISE w4-band (22.1um) magnitudemagphot.flux.density;em.IR.15-30umfloate_W4magError on the w4-band magnitudemagstat.error;phot.magfloatWdetWISE detection label, 0 or 1 for each bandmeta.codeintGCS9Display the UKIDSS GCS-DR9 data, Cat. II/319meta.ref.urlcharWDisplay the WISE data for this sourcemeta.ref.urlcharNIRDisplay the near-IR data for this starmeta.ref.urlchar

J/MNRAS/431/3222/table3Potential variable candidates in our USco ZYJHK-pm sample of low-mass stars and brown dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarDetails from tables A1, B1 and E1 about the starmeta.ref.urlcharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainK1magUKIDSS K magnitude from first epochmagphot.mag;em.IR.KfloatK2magUKIDSS K magnitude from second epochmagphot.mag;em.IR.KfloatK1-K2K1-K2 magnitude differencemagphot.mag;arith.difffloatGCS9Display the UKIDSS GCS-DR9 data, Cat. II/319meta.ref.urlchar