J/ApJS/133/413ivo://CDS.VizieR/J/ApJS/133/413doi:10.26093/cds/vizier.21330413CDSBergeron P.Leggett S.K.Ruiz M.T.2001-06-16T13:24:45Z2001-06-16T13:24:40ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsinfrared-photometryvisible-astronomyWide-band photometrytrigonometric-parallaxA detailed photometric and spectroscopic analysis of cool (T_eff_<~12000K) white dwarf stars is presented. The sample has been drawn from the Yale Parallax Catalog and from a proper motion survey in the southern hemisphere. Optical BVRI and infrared JHK photometry, as well as spectroscopy at H{alpha}, have been secured for a sample of 152 white dwarfs. The discovery of seven new DA white dwarfs, two new DQ white dwarfs, one new magnetic white dwarf, and three weak magnetic white dwarf candidates, is reported. Our sample also identifies 19 known or suspected double degenerates.2001ApJS..133..413Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/133/413CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/210 : Spectroscopically Identified White Dwarfs (McCook+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/133/413https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/133/413http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/133/413https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/133/413https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/133/413http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/133/413GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJS/133/413/table1Observational ResultsJ-H? The CIT J-H color (2)magphot.color;em.IR.J;em.IR.HfloatnullableNameWhite Dwarf namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf number (HHMM+DDd, Cat. III/210)meta.id;meta.maincharprimarym_WDMultiplicity index on WDmeta.code.multipcharLinkLink to the data from Mc Cook's Catalog os White Dwarfsmeta.refcharplxTrigonometric parallaxmaspos.parallax.trigfloate_plxUncertainty in plxmasstat.errorfloatEWHalphaH{alpha} equivalent width in {AA} (1)0.1nmspect.line.eqWidthfloatVmagThe Cousins V band magnitude (2)magphot.mag;em.opt.Vfloatu_VmagIndicates a 10% uncertainty in Vmagmeta.code.errorcharB-V? The Cousins B-V color (2)magphot.color;em.opt.B;em.opt.Vfloatnullableu_B-VIndicates a 10% uncertainty in B-Vmeta.code.errorcharV-R? The Cousins V-R color (2)magphot.color;em.opt.V;em.opt.Rfloatnullableu_V-RIndicates a 10% uncertainty in V-Rmeta.code.errorcharV-I? The Cousins V-I color (2)magphot.color;em.opt.V;em.opt.Ifloatnullableu_V-IIndicates a 10% uncertainty in V-Imeta.code.errorcharo_VmagNumber of independent BVRI observationsmeta.numberintJmag? The CIT J band magnitude (2)magphot.mag;em.IR.Jfloatnullableu_JmagIndicates a 10% uncertainty in Jmagmeta.code.errorcharu_J-HIndicates a 10% uncertainty in J-Hmeta.code.errorcharH-K? The CIT H-K color (2)magphot.color;em.IR.H;em.IR.Kfloatnullableu_H-KIndicates a 10% uncertainty in H-Kmeta.code.errorcharo_JmagNumber of independent JHK observationsmeta.numberintn_NameNotes on Name (3)meta.notecharJ/ApJS/133/413/table2Atmospheric Parameters of Cool White DwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf number (HHMM+DDd)meta.id;meta.maincharm_WDMultiplicity index on WDmeta.code.multipcharLinkLink to the data from Mc Cook's Catalog os White Dwarfsmeta.refcharTeffEffective temperatureKphys.temperature.effectiveinte_TeffUncertainty in Teff (1)Kstat.errorintlog(g)Log of the surface gravitylog(cm.s**-2)phys.gravityfloate_log(g)Uncertainty in log(g) (2)log(cm.s**-2)stat.errorfloatCompThe dominant atmospheric constituentphys.atmol.elementcharMassMass in solar unitssolMassphys.massfloate_MassUncertainty in Mass (2)solMassstat.errorfloatVMagAbsolute V band magnitudemagphys.magAbs;em.optfloate_VMagUncertainty in VMag (2)magstat.errorfloatLumLuminosity (log) in solar unitslog(solLum)phys.luminosityfloate_LumUncertainty in Lum (2)log(solLum)stat.errorfloatAgeWhite Dwarf cooling age (3)Gyrtime.agefloate_AgeUncertainty in Age (2)Gyrstat.errorfloatn_WDNotes on WD (4)meta.notechar