VizieR Online Data Catalog: Catalogue of white dwarfs in Gaia EDR3 (Gentile+, 2021)

The main catalogue provides 1280266 stars selected from Gaia EDR3 with calculated probabilities of being a white dwarf (PWD). The PWD values can used to reliably select high-confidence white dwarf candidates with a flexible compromise between completeness and level of potential contamination. As a generic guideline selecting objects with P_WD>0.75 recovers ~=359000 high -confidence white dwarf candidates, 25632 of which have SDSS spectroscopy. ~=91 per cent of these spectroscopic sources are confirmed white dwarfs, ~=1 per cent are contaminant objects, ~=3 per cent are white dwarf-main sequence binaries or cataclysmic variables, and the rest have unreliable classification. We also provide a Reduced Proper Motion (RPM) extension to the main catalogue which contains Gaia white dwarf candidates with unreliable paralax measurement, but that could be selected on the basis of their proper motion. This catalogue extension also makes use of a flexible probability parameter (PH_wd) and we suggest to use PH_wd>0.85 to select a reliable set of high-confidence white dwarf candidates. All Gaia sources in both catalogues have also been cross matched with SDSS DR14 taking into account the difference in epoch of observation and proper motions. Whether available we include SDSS ugriz photometry. In a separate table we provide informations on all the available SDSS spectra for the Gaia sources in the main catalogue.

(3 data files).