J/ApJ/571/512ivo://CDS.VizieR/J/ApJ/571/512doi:10.26093/cds/vizier.15710512CDSHolberg J.B.Oswalt T.D.Sion E.M.2017-12-22T05:32:38Z2007-03-08T15:46:59ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsapparent-magnitudevisible-astronomytrigonometric-parallaxstellar-distanceThe most recent version of the Catalog of Spectroscopically Identified White Dwarfs lists 2249 white dwarf stars. Among these stars are 109 white dwarfs that have either reliable trigonometric parallaxes or color-based distance moduli that place them at a distance within 20pc of the Sun. Most of these nearby white dwarfs are isolated stars, but 28 (25% of the sample) are in binary systems, including such well-known systems as Sirius A/B and Procyon A/B. There are also three double degenerate systems in this sample of the local white dwarf population. The sample of local white dwarfs is largely complete out to 13pc, and the local density of white dwarf stars is found to be 5.0+/-0.7x10^-3^pc^-3^, with a corresponding mass density of 3.4+/-0.5x10^-3^M{sun}_/pc^3^2002ApJ...571..512Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/571/512CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/70 : Luyten's White Dwarf Catalogues (Luyten, 1970-77)III/210 : Spectroscopically Identified White Dwarfs (McCook+, 1999)J/A+A/316/147 : Catalogue of ROSAT White Dwarfs (Fleming+ 1996)J/A+A/363/1040 : DB white dwarfs from the Hamburg/ESO survey (Friedrich+, 2000)J/A+A/378/556 : UVES/VLT spectra of white dwarfs (Koester+, 2001)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/ApJ/571/512https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/571/512http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/571/512https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/571/512https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/571/512http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/571/512GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/571/512/table1 (Known White Dwarfs within 20pc)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/571/512/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/571/512/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/571/512/table1?GETtext/xml+votable180.050000true0.667-34.22766670.0055555555555555566/131 319 1077 1381 2366 2497 2536 2808 3222 3345 3682 6328 6705 6934 7267 7478 7652 7740 8894 9458 9985 10169 10173 11645 12157 12268 12738 13013 13103 13295 14391 14586 15280 15335 15462 16078 16433 16440 16697 17181 17331 17625 18139 18415 18511 18556 18902 20155 20404 20940 21479 21691 22149 22214 22300 22345 22638 22709 22870 23174 23457 23497 23591 24121 24713 25250 25255 25792 26321 26386 26471 26740 27385 28271 28559 29777 29855 30093 30694 31179 31677 33015 33384 33641 34026 35490 35957 36567 37473 37890 38050 39752 40070 40623 41638 42459 42700 42760 43239 43537 44639 45110 46598 47957 48699 49125https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/571/512?format=asciiOpticaldefaultJ/ApJ/571/512/table1Known White Dwarfs within 20pcTypeWhite dwarf typesrc.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWhite dwarf namemeta.id;meta.maincharn_Name[*] indicates a note in notes.dat filemeta.notecharVmagV magnitudemagphot.mag;em.opt.VfloatVMAG? Absolute V magnitudemagphys.magAbs;em.opt.Vfloatnullableplx? Trigonometric parallaxmaspos.parallax.trigfloatnullableDVmag? Distance estimated with V magnitudepcpos.distance;pos.heliocentricfloatnullableDplx? Distance estimated with parallaxpcpos.distance;pos.heliocentricfloatnullableDistAdopted distancepcpos.distance;pos.heliocentricfloatbin[d bb] System: b = binary system, dd = double degenerate systemmeta.notecharSimbadNameSimbad column added by the CDSmeta.idchar_RAComputed Right Ascension for Equinox: J2000degpos.eq.ra;meta.main_DEComputed Declination for Equinox: J2000degpos.eq.dec;meta.mainJ/ApJ/571/512/notesIndividual notesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWhite dwarf namemeta.id;meta.maincharNoteText of the notemeta.notechar