J/ApJ/663/1291ivo://CDS.VizieR/J/ApJ/663/1291doi:10.26093/cds/vizier.16631291CDSDufour P.Bergeron P.Liebert J.Harris H.C.Knapp G.R.Anderson S.F.,Hall P.B.Strauss M.A.Collinge M.J.Edwards M.C.2023-09-05T06:41:03Z2010-01-20T09:49:09ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starseffective-temperaturechemical-abundancesWe present a detailed analysis of a large spectroscopic and photometric sample of DZ white dwarfs based on our latest model atmosphere calculations. We revise the atmospheric parameters of the trigonometric parallax sample of Bergeron, Leggett, & Ruiz (2001, Cat. <J/ApJS/133/413>, 12 stars) and analyze 147 new DZ white dwarfs discovered in the SDSS. The inclusion of metals and hydrogen in our model atmosphere calculations leads to different atmospheric parameters than those derived from pure helium models.2007ApJ...663.1291Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/663/1291CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/607/426 : Catalog of white dwarfs in SDSS-DR1 (Kleinman+, 2004)J/ApJS/167/40 : SDSS4 confirmed white dwarfs catalog (Eisenstein+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/663/1291https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/663/1291http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/663/1291https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/663/1291https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/663/1291http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/663/1291GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/663/1291/table2 (Atmospheric parameters of DZ Stars from the SDSS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/663/1291/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/663/1291/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/663/1291/table2?GETtext/xml+votable180.050000true1.48833330.309250.0055555555555555566/4100 4141 4154 4177 4239 4257 5099-5100 5469 5598 5677 5692 5709 5721 5735-5736 5824 5827 5867 5871 5900 5927 5945 5956 5965 5971 6090 6123 6233 6258 6260 6356 6389 6416 6445 6447 6458 6483 6488 6517 6526 6536 6542 6579 6602 7229 7262 7287 7313 7315 7383 7432 7457 7477 7496 9183 9327 9604 9788 9844 9886 9959 10092 10094 10648 10672 10908 11047 11131 11146 11177 11254 11295 11344 11453 11488 11825 11880 11924 17233 17560 17766 17811 17819 17833 17998 18009 18022 18085 18091 18112 18404 18776 18862 19085 19106 19201 19401 19685 19751 21852 22717 25914 25918 25925-25926 25955 26003 26017-26018 26068 26157 26165 26236 26260 26279 26396 26955 27007 27034 27045 27048 27057 27129-27130 27259-27260 27292 27303 27349 27385 27391 27427 27459 27590 27821 30033 31431 31441 32457 32508 36717 36778 36805 49149https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/663/1291?format=asciidefaultJ/ApJ/663/1291/table2Atmospheric parameters of DZ Stars from the SDSSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharPlateSDSS plate numbermeta.idintMJDSDSS MJD numbermeta.idintFiberSDSS Fiber numbermeta.idintTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintlog(Ca/He)Ca/He abundancephys.abundfloate_log(Ca/He)rms uncertainty on log(Ca/He)stat.errorfloatDistHeliocentric distancepcpos.distance;pos.heliocentricintl_log(H/He)Limit flag on log(H/He)meta.code.errorcharlog(H/He)H/He abundancephys.abundfloate_log(H/He)? rms uncertainty on log(H/He)stat.errorfloatnullableR[*] indicates the SDSS name was corrected at CDS (see the "History" section below)meta.notecharDR4Details from SDSS-DR4 and SDSS-DR7meta.ref.urlcharSloanDisplay the SDSS datameta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight ascension (derived from SDSS) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from SDSS) for Eq=J2000degpos.eq.dec;meta.main