White dwarf candidates using LAMOST DR3 J/MNRAS/452/765 ivo://CDS.VizieR/J/MNRAS/452/765 doi:10.26093/cds/vizier.74520765 CDS Gentile Fusillo N.P. Rebassa-Mansergas A. Gansicke B.T. Liu X.-W.,Ren J.J. Koester D. Zhan Y. Hou Y. Wang Y. Yang M. 2024-08-15T20:14:51Z 2016-04-01T15:27:42Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr surveys white-dwarf-stars visible-astronomy sloan-photometry stellar-masses In previous work by Gentile Fusillo et al., we developed a selection method for white dwarf candidates which makes use of photometry, colours and proper motions to calculate a probability of being a white dwarf (P_WD_). The application of our method to the Sloan Digital Sky Survey (SDSS) data release 10 resulted in =~ 66000 photometrically selected objects with a derived P_WD_, approximately =~21000 of which are high-confidence white dwarf candidates. Here, we present an independent test of our selection method based on a sample of spectroscopically confirmed white dwarfs from the Large Sky Area Multi-Fiber Spectroscopic Telescope (LAMOST) survey. We do this by cross-matching all our =~66000 SDSS photometric white dwarf candidates with the over 4 million spectra available in the third data release of LAMOST. This results in 1673 white dwarf candidates with no previous SDSS spectroscopy, but with available LAMOST spectra. Among these objects, we identify 309 genuine white dwarfs. We find that our P_WD_ can efficiently discriminate between confirmed LAMOST white dwarfs and contaminants. Our white dwarf candidate selection method can be applied to any multiband photometric survey and in this work we conclusively confirm its reliability in selecting white dwarfs without recourse to spectroscopy. We also discuss the spectroscopic completeness of white dwarfs in LAMOST, as well as deriving effective temperatures, surface gravities and masses for the hydrogen-rich atmosphere white dwarfs in the newly identified LAMOST sample. 2015MNRAS.452..765G https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/452/765 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to V/146 : LAMOS DR1 catalogs (Luo+, 2015) J/MNRAS/448/2260 : White dwarf candidates in SDSS DR10 (Gentile+, 2015) J/MNRAS/446/4078 : New white dwarf stars in SDSS DR10 (Kepler+, 2015) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/452/765 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/452/765 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/452/765 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/452/765 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/452/765 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/452/765 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/452/765/catalog (SDSS WD candidates with LAMOST spectra catalog) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/452/765/catalog? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/452/765/catalog? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/452/765/catalog? 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27956 27981 27999 28017 28054 28081 28083 28139 28161 28183 28213 28269 28302 28320 28331 28337 28370 28407 28411 28445 28447 28483 28492 28495 28513 28521 28529 28531-28532 28559 28577 28630 31146 31150 31286 31330 31337 31339 31356 31369 31374 31387 31395 31398 31428 31434 31437 31444 31450 31488 31534 31651 31711 31731 31733 31735 31907 32384 32388 32402 32439 32474 32489 32498 32505 32548-32549 32555-32557 32562 32641-32643 32673 32689 32699 36846 36851 36854 36856 36862 40948 45034 45039 45045-45046 49093 49109 49117 49119 2.040811542443644e-19 6.090060298487514e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/452/765?format=ascii Optical default J/MNRAS/452/765/catalog SDSS WD candidates with LAMOST spectra catalog SimbadName Simbad column added by the CDS meta.id char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS SDSS objects name (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main Prob The probability of being a WD computed for this object in this paper stat.probability;meta.modelled double umag SDSS u band PSF magnitude mag phot.mag;em.opt.U double e_umag SDSS u band PSF magnitude uncertainty mag stat.error;phot.mag;em.opt.U double gmag SDSS g band PSF magnitude mag phot.mag;em.opt.B double e_gmag SDSS g band PSF magnitude uncertainty mag stat.error;phot.mag;em.opt.B double rmag SDSS r band PSF magnitude mag phot.mag;em.opt.R double e_rmag SDSS r band PSF magnitude uncertainty mag stat.error;phot.mag;em.opt.R double imag SDSS i band PSF magnitude mag phot.mag;em.opt.I double e_imag SDSS i band PSF magnitude uncertainty mag stat.error;phot.mag;em.opt.I double zmag SDSS z band PSF magnitude mag phot.mag;em.opt.I double e_zmag SDSS z band PSF magnitude uncertainty mag stat.error;phot.mag;em.opt.I double pmRA Proper motion in right ascension mas/yr pos.pm;pos.eq.ra double e_pmRA Proper motion in right ascension uncertainty mas/yr stat.error;pos.pm;pos.eq.ra double pmDE Proper motion in right declination mas/yr pos.pm;pos.eq.dec double e_pmDE Proper motion in right declination uncertainty mas/yr stat.error;pos.pm;pos.eq.dec double SClass Currently available Simbad classifications src.class char spID Unique LAMOST spectra identifier composed of MJD (modified Julian date) of the observation, plate ID, spectrograph ID and a fiber ID meta.id;meta.file char LClass Classification of the object based on our visual inspection of its LAMOST spectra meta.code.class;src.class char Teff ? Effective temperature calculated for DA white dwarfs (sect. 6) K phys.temperature.effective;meta.modelled int nullable e_Teff ? uncertainty in the effective temperature calculated for DA white dwarfs (sect. 6) K stat.error;phys.temperature.effective int nullable logg ? Surface gravity calculated for DA white dwarfs (sect. 6) log(cm.s**-2) phys.gravity;meta.modelled float nullable e_logg ? uncertainty in the surface gravity calculated for DA white dwarfs (sect. 6) log(cm.s**-2) stat.error float nullable Mass ? Mass of the white dwarfs calculated for DA white dwarfs (sect. 6) solMass phys.mass float nullable e_Mass ? uncertainty in mass of the white dwarfs calculated for DA white dwarfs (sect. 6) solMass stat.error;phys.mass float nullable Sloan Display the SDSS data for this star meta.ref.url char