J/AJ/143/103ivo://CDS.VizieR/J/AJ/143/103doi:10.26093/cds/vizier.51430103CDSSayres C.Subasavage J.P.Bergeron P.Dufour P.Davenport J.R.A.,Alsayyad Y.Tofflemire B.M.2026-01-20T12:12:19Z2014-10-15T15:17:27ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsproper-motionsvisible-astronomysloan-photometryBy selecting astrometric and photometric data from the Sloan Digital Sky Survey (SDSS, II/306), the Lepine & Shara Proper Motion North Catalog (LSPM-North, I/298), the Two Micron All Sky Survey (2MASS, II/246), and the USNO-B1.0 (I/284) catalog, we use a succession of methods to isolate white dwarf (WD) candidates for follow-up spectroscopy. Our methods include reduced proper motion diagram cuts, color cuts, and atmospheric model adherence. We present spectroscopy of 26 WDs obtained from the CTIO 4m and APO 3.5m telescopes. Additionally, we confirm 28 WDs with spectra available in the SDSS-DR7 database but unpublished elsewhere, presenting a total of 54 WDs. We label one of these as a recovered WD while the remaining 53 are new discoveries. We determine physical parameters and estimate distances based on atmospheric model analyses. Three new WDs are modeled to lie within 25 pc. Two additional WDs are confirmed to be metal-polluted (DAZ). Follow-up time series photometry confirms another object to be a pulsating ZZ Ceti WD.2012AJ....143..103Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/143/103CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/298 : LSPM-North Catalog (Lepine+ 2005)J/AJ/130/1680 : LSPM-North proper-motion catalog nearby stars (Lepine+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/143/103https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/143/103http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/143/103https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/143/103https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/143/103http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/143/103GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/143/103/WD (New spectroscopically confirmed white dwarfs with atmospheric parameters (tables 1 and 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/143/103/WD?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/143/103/WD?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/143/103/WD?GETtext/xml+votable180.050000true48.7330833-8.25516670.0055555555555555566/4429 4437 4456 4523-4524 4541 4667 4848 4869 4904 4923 4963 4977 5008 5127 7553 8315 8319 8541 8749 8770 8905 9008 9957 10376 12593 13080 19135 23139 23145 23428 25341 26059 26076 26078 26085 26095 26121 26172 26311 26396 26516 26550 26602 27001 27045 27070 27093 27311-27312 27431 27523 27621 27672 27689 27744 27799 27945 28001 28092 28198 28272 28349 28413-28414 28452 28532 28569 28578 31434 31549 36717 491248.650015785639275e-20 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/143/103?format=asciiOpticaldefaultJ/AJ/143/103/WDNew spectroscopically confirmed white dwarfs with atmospheric parameters (tables 1 and 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWD name (HHMM+DDd, B1950); "subdwarf" for spectroscopically confirmed subdwarfs (G1)meta.idcharNameName of the starmeta.id;meta.maincharRAJ2000Right Ascension J2000, Ep=J2000pos.eq.ra;meta.mainDEJ2000Declination J2000, Ep=J2000pos.eq.dec;meta.mainr_pmReference of proper motion (1)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.ref.urlcharCompComposition (H, He, etc)phys.atmol.elementcharpm[0.01/0.44] Total proper motionarcsec/yrpos.pmfloatpmPA[0/360] Proper motion position angledegpos.pm;pos.posAngfloatumagSDSS u-band PSF magnitude from SDSS-DR8magphot.mag;em.opt.Ufloate_umagMean error on umagmagstat.error;phot.magfloatgmagSDSS g-band PSF magnitude from SDSS-DR8magphot.mag;em.opt.Bfloate_gmagMean error on gmagmagstat.error;phot.magfloatrmagSDSS r-band PSF magnitude from SDSS-DR8magphot.mag;em.opt.Rfloate_rmagMean error on rmagmagstat.error;phot.magfloatimagSDSS i-band PSF magnitude from SDSS-DR8magphot.mag;em.opt.Ifloate_imagMean error on imagmagstat.error;phot.magfloatzmagSDSS z-band PSF magnitude from SDSS-DR8magphot.mag;em.opt.Ifloate_zmagMean error on zmagmagstat.error;phot.magfloatJmag2MASS J-band magnitude (or from UKIDSS)magphot.mag;em.IR.Jfloate_JmagMean error on Jmagmagstat.error;phot.magfloatHmag2MASS H-band magnitude (or from UKIDSS)magphot.mag;em.IR.Hfloate_Hmag? Mean error on Hmagmagstat.error;phot.magfloatnullableKmag2MASS Ks-band magnitude (or from UKIDSS)magphot.mag;em.IR.Kfloate_Kmag? Mean error on Kmagmagstat.error;phot.magfloatnullableSrcSource of spectroscopic data (2)meta.idcharTe(p)Photometric effective temperatureKphys.temperature.effectiveintnullablee_Te(p)Mean error on Te(p)Kstat.errorintnullableDistPhotometric distancepcpos.distance;pos.heliocentricfloatnullablee_DistMean error on Distpcstat.errorfloatnullableSpTSpectral typesrc.spTypecharTe(s)? Spectroscopic effective temperatureKphys.temperature.effectiveintnullablee_Te(s)? Mean error on Te(s)Kstat.errorintnullablelogg? Surface gravity (log)log(cm.s**-2)phys.gravityfloatnullablee_logg? Mean error on logglog(cm.s**-2)stat.errorfloatnullableNote[a-j] Individual notes (1)meta.notechar