J/AJ/162/188ivo://CDS.VizieR/J/AJ/162/188doi:10.26093/cds/vizier.51620188CDSBergeron P.Wesemael F.Fontaine G.Lamontagne R.Demers S.Bedard A.,Gingras M.-J.Blouin S.Irwin M.J.Kepler S.O.2022-03-21T12:13:43Z2022-01-07T11:48:33ZCDS support team

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

cds-question@unistra.frsurveyswhite-dwarf-starsphotometryvisible-astronomyspectroscopyeffective-temperaturestellar-massesWe present optical spectra of 144 white dwarfs detected in the Montreal-Cambridge-Tololo colorimetric survey, including 120 DA, 12 DB, 4 DO, 1 DQ, and 7 DC stars. We also perform a model atmosphere analysis of all objects in our sample using the so-called spectroscopic technique, or the photometric technique in the case of DC white dwarfs. The main objective of this paper is to contribute to the ongoing effort of confirming spectroscopically all white dwarf candidates in the Gaia survey, in particular in the southern hemisphere. All our spectra are made available in the Montreal White Dwarf Database.2021AJ....162..188Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/188CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/wd : Spectroscopically identified white dwarfs (McCook+, 2014)II/106 : Kiso Ultraviolet Catalog (KUV) (Noguchi+, 1980-1984)II/212 : A Finding List of Faint UV-Bright Stars (Lanning+, 1998)III/210 : Spectroscopically Identified White Dwarfs (McCook+, 1999)II/231 : A Finding List of Faint UV-Bright Stars (Lanning+, 2000)II/257 : A Finding List of Faint UV-Bright Stars (Lanning+, 1973-2004)III/235 : Spectroscopically Identified White Dwarfs (McCook+, 2008)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)J/ApJ/730/128 : Spectroscopy of DA WD from the SDSS-DR4 (Tremblay+, 2011)J/ApJ/743/138 : Spectroscopic survey of bright white dwarfs (Gianninas+, 2011)J/A+A/616/A10 : 46 open clusters GaiaDR2 HR diagrams (Gaia Collaboration, 2018)J/ApJ/878/63 : Cool WDatmosphere models IV. Spectral evolution (Blouin+, 2019)J/ApJ/885/74 : 1340 Helium rich white dwarfs in the Gaia era (Coutu+, 2019)J/MNRAS/482/4570 : Gaia DR2 white dwarf candidates (Gentile Fusillo+, 2019)J/ApJ/898/84 : Spectro. follow-up of 100pc WDs in SDSS & Gaia (Kilic+, 2020)J/MNRAS/497/130 : Gaia white dwarfs within 40pc. I (Tremblay+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/188https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/188http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/188https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/188https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/188http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/188GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/162/188/table1 (Photometric and spectroscopic data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/188/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/188/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/188/table1?GETtext/xml+votable180.050000true0.7970342-18.36576210.0055555555555555566/16422 16438 16465 16467 16510 16520 16533 16584 16614 16647 16662 16729 16754 16759 16764 16796 16799 16826 16857 16877 16906 16910 16928 16948 16970 16974 16986 16988 17007 17009 17013 17020 17153 17189 17208 17222 17415 17440 17451 33064 33167 33309 33335 33639 34398 34407 34454 34540 34582 34649 34652 34676 34822 35179 35246 35258 35273 35300 35376 35447 35565 35573 35591 35626 35647 35670 35686 35692 35711 35790 35797 35806 35839 35879 35891 35912 35962 35978 36063 36081 36257 36366 36370 36395 36403 36485 36489 36509 36521 36578 36580 36591 36739 45433 45815 45994-45995 46385 46431 46448 46509 46513 46582 46653 46688 46695 46700 46721 46746 46755 46779 46795 46820 46822 46875 46882 46908 46928 46955 47011 47019 47374 47439 47459 47476 47501 47559 47582 47958 48132 48134 48148 48152 48236 48259 48278 48313 48319 48336https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/162/188?format=asciiOpticaldefaultJ/AJ/162/188/table1Photometric and spectroscopic datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMCTMontreal-Cambridge-Tololo identifiermeta.id;meta.maincharprimaryRAB1950[0/23] Hour of Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950[12/73] Degree of Declination (B1950)pos.eq.dec;meta.mainBPmag[13.3/16.9] B band photographic magnitudemagphot.mag;em.opt.BfloatU-B[-1.41/-0.48] Photographic (U-B) colormagphot.color;em.opt.U;em.opt.BfloatObsObservation date; daytime.epoch;obsTelTelescope identifiermeta.id;instr.telcharR[3/13] Spectral resolution; Angstroms0.1nmspect.resolutionintAtmosIndicates that atmospheric data are available (table2)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedJ/AJ/162/188/table2Atmospheric parameters of MCT white dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMCTMontreal-Cambridge-Tololo identifiermeta.id;meta.maincharTypeWhite Dwarf typesrc.classcharEDR3? Gaia EDR3 identifiermeta.id.crossnullableTeff[7780/95040]? Effective temperatureKphys.temperature.effectiveintnullablee_Teff[39/13197]? Uncertainty in TeffKstat.error;phys.temperature.effectiveintnullablelogg[6.52/8.78]? log surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg[0.01/0.6]? Uncertainty in log(g)log(cm.s**-2)stat.errorfloatnullableMass[0.31/1.08]? Stellar masssolMassphys.massfloatnullablee_Mass[0/0.3]? Uncertainty in MasssolMassstat.error;phys.massfloatnullableCompAssumed atmospheric compositionobs.atmos.extinction;phys.compositioncharDist[23/911]? Gaia EDR3 parallactic distancepcpos.distance;src.orbitalintnullablelogtau[5.03/9.49]? log White Dwarf cooling timelog(yr)time.agefloatnullableNoteAdditional note(s) (1)meta.notechar