J/AJ/131/582ivo://CDS.VizieR/J/AJ/131/582doi:10.26093/cds/vizier.51310582CDSKilic M.Munn J.A.Harris H.C.Liebert J.von Hippel T.Williams K.A.,Metcalfe T.S.Winget D.E.Levine S.E.2007-04-09T21:49:25Z2007-04-09T21:46:03ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsvisible-astronomysloan-photometryproper-motionsA reduced proper motion diagram utilising Sloan Digital Sky Survey (SDSS) photometry and astrometry and USNO-B plate astrometry is used to separate cool white dwarf candidates from metal-weak, high-velocity, main-sequence Population II stars (subdwarfs) in the SDSS Data Release 2 imaging area. Follow-up spectroscopy using the Hobby-Eberly Telescope, the MMT, and the McDonald 2.7m telescope is used to demonstrate that the white dwarf and subdwarf loci separate cleanly in the reduced proper motion diagram and that the contamination by subdwarfs is small near the cool white dwarf locus.2006AJ....131..582Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/131/582CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www.sdss.org : SDSS Home PageIII/70 : Luyten's White Dwarf Catalogues (Luyten, 1970-77)III/235 : Spectroscopically Identified White Dwarfs (McCook+ 2006)J/AJ/126/1023 : White Dwarfs in the SDSS (Harris+, 2003)J/ApJ/607/426 : Catalog of white dwarfs in SDSS-DR1 (Kleinman+, 2004)J/AJ/128/1825 : Photometry identification of cool white dwarfs (Kilic+, 2004)J/ApJS/133/413 : BVRIJHK photometry of cool white dwarfs (Bergeron+ 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/131/582https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/131/582http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/131/582https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/131/582https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/131/582http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/131/582GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/131/582/table1 (Spectroscopically identified white dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/131/582/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/131/582/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/131/582/table1?GETtext/xml+votable180.050000true0.8195417-1.18830560.005555555555555556Cone search capability for table J/AJ/131/582/table2 (Spectroscopically identified subdwarf stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/131/582/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/131/582/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/131/582/table2?GETtext/xml+votable180.050000true4.55725-8.91627780.0055555555555555566/0 552 554 5832 5843 5911 5922 6056 6094 6208 6248 6341 6356 6510 6524 6525 6554 6576 6614 6617 6624 7192 7256 7279 7282 7295 7304 7455 7463 7478 7492 7498 7510 7511 7512 7515 7527 9310 9332 9444 9516 9606 9611 9846 9971 9996 10027 10107 10144 10183 10223 10711 11145 11247 11258 11359 11787 11801 11805 11883 11932 12408 12549 12562 17255 17260 17293 17304 17309 17405 17502 17663 17806 17813 17834 18025 18072 18409 18520 18775 18791 18797 18800 18860 18945 18954 19006 19022 19051 19114 19325 19402 19411 19432 19727 19732 19733 19758 19762 19982 19987 21875 21883 21961 22716 23064 23104 23198 23201 23211 23212 25585 25942 26027 26031 26073 26178 26196 26221 26231 26239 26269 26309 26311 26351 26941 26951 26962 27006 27007 27059 27072 27086 27215 27227 27238 27253 27255 27314 27432 27674 27675 30043 31317 32479 32508 32672 32680 36717 36718 36734 36762 36764 36775 36809 36863 48989 49014 49016 49077 49102 491283.588997330618193e-19 4.653515163505597e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/131/582?format=asciiOpticaldefaultJ/AJ/131/582/table1Spectroscopically identified white dwarfsSDSSView the SDSS detailsmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSJSDSS designation (HHMMSS.ss+DDMMSS)meta.id;meta.mainchargmagSDSS g band magnitudemagphot.mag;em.opt.Bfloatu-gSDSS (u-g) color indexmagphot.color;em.opt.U;em.opt.Bfloatg-rSDSS (g-r) color indexmagphot.color;em.opt.B;em.opt.Rfloatr-iSDSS (r-i) color indexmagphot.color;em.opt.R;em.opt.Ifloati-zSDSS (i-z) color indexmagphot.color;em.opt.I;em.opt.IfloatAuInterstellar absorption in the SDSS u band (G1)magphys.absorption;em.opt.UfloatpmRAProper motion in Right Ascensionmas/yrpos.pm;pos.eq.raintpmDEProper motion in Declinationmas/yrpos.pm;pos.eq.decintnEpNumber of epochs in which object is detectedmeta.numberintSpTypeWD spectral typesrc.spTypecharTeffModel atmosphere effective temperatureKphys.temperature.effective;meta.modelledintMbolPredicted bolometric magnitudemagphot.mag.bolfloatgMAGAbsolute SDSS g band magnitudemagphys.magAbsfloatDistPhotometric distancepcpos.distance;pos.heliocentricfloatVtanEstimated tangential velocitykm/sphys.veloc.transversefloatTelSource telescope for spectroscopy (G2)instr.telchar_RAPosition (derived from SDSS name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (derived from SDSS name) (declination part)degpos.eq.dec;meta.mainJ/AJ/131/582/table2Spectroscopically identified subdwarf starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSJSDSS designation (HHMMSS.ss+DDMMSS.s)meta.id;meta.mainchargmagSDSS g magnitudemagphot.mag;em.opt.Bfloatu-gg-u color indexmagphot.color;em.opt.U;em.opt.Bfloatg-rg-r color indexmagphot.color;em.opt.B;em.opt.Rfloatr-ir-i color indexmagphot.color;em.opt.R;em.opt.Ifloati-zi-z color indexmagphot.color;em.opt.I;em.opt.IfloatDistDistancepos.distance;pos.heliocentricfloatAuInterstellar absorption in the SDSS u band (G1)magphys.absorption;em.opt.UfloatpmRAProper motion in Right Ascensionmas/yrpos.pm;pos.eq.raintpmDEProper motion in Declinationmas/yrpos.pm;pos.eq.decintnEpNumber of epochs in which the object is detectedmeta.numberintTelSource telescope for spectroscopy (G2)instr.telcharSDSSView the SDSS detailsmeta.ref.urlchar_RAPosition (derived from SDSS name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (derived from SDSS name) (declination part)degpos.eq.dec;meta.main