Gaia DR3 5411553239846995328 , the SIMBAD biblio

2021MNRAS.508.3877G - Mon. Not. R. Astron. Soc., 508, 3877-3896 (2021/December-2)

A catalogue of white dwarfs in Gaia EDR3.


Abstract (from CDS):

We present a catalogue of white dwarf candidates selected from Gaia Early Data Release 3 (EDR3). We applied several selection criteria in absolute magnitude, colour, and Gaia quality flags to remove objects with unreliable measurements while preserving most stars compatible with the white dwarf locus in the Hertzsprung-Russell diagram. We then used a sample of over 30 000 spectroscopically confirmed white dwarfs and contaminants from the Sloan Digital Sky Survey (SDSS) to map the distribution of these objects in the Gaia absolute magnitude-colour space. Finally, we adopt the same method presented in our previous work on Gaia Data Release 2 (DR2) to calculate a probability of being a white dwarf (PWD) for ≃1.3 million sources that passed our quality selection. The PWD values can be used to select a sample of ≃359000 high-confidence white dwarf candidates. We calculated stellar parameters (effective temperature, surface gravity, and mass) for all these stars by fitting Gaia astrometry and photometry with synthetic pure-H, pure-He, and mixed H-He atmospheric models. We estimate an upper limit of 93 per cent for the overall completeness of our catalogue for white dwarfs with G <= 20 mag and effective temperature (Teff) > 7000 K, at high Galactic latitudes (|b| > 20°). Alongside the main catalogue we include a reduced proper motion extension containing ≃10200 white dwarf candidates with unreliable parallax measurements that could, however, be identified on the basis of their proper motion. We also performed a cross-match of our catalogues with SDSS Data Release 16 (DR16) spectroscopy and provide spectral classification based on visual inspection for all resulting matches.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): catalogues - surveys - white dwarfs

VizieR on-line data: <Available at CDS (J/MNRAS/508/3877): maincat.dat sdssspec.dat rpm_ext.dat>

CDS comments: Tables maincat and rpm_ext : sources with a probability to be a White Dwarf Pwd ≥ 0.5 have been ingested in SIMBAD (N = 408181 + 42968); sources with Pwd < 0.5 will not be ingested. Table sdssspec : sources with specClass ∼ CV, D, PG1159, QSO have been ingested in SIMBAD; sources with specClass = STAR or UNK or Unreliable will not be ingested. Table A1: Gaia EDR3 3845263368043086080 does not exist and is a misprint for Gaia EDR3 3845263368043470080. Nomenclature : the acronym WD is devoted to the compilation of spectrosocopically confirmed White Dwarfs of McCook & Sion, with a format built on 1950 coordinates; it is not a generic acronym.; the names WD J... given by the authors in the table maincat and rpm_ext have thus not been added in SIMBAD, because the acronym WD is not free, and because it could be misleading as 68% of the objects have a probability to be a White Dwarf lower than 50%. Please use the Gaia DR3 identifier instead.

Simbad objects: 451937

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