VizieR Online Data Catalog: Gaia DR2 white dwarf candidates (Gentile Fusillo+, 2019)
Abstract
The main catalogue provides 486,641 stars selected from Gaia DR2 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 PWD>0.75 recovers 96 per cent of the spectroscopically confirmed white dwarfs from SDSS and only 1 per cent of the contaminant (non white dwarfs) objects.
All Gaia sources in the catalogue 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. (2 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- January 2019
- Bibcode:
- 2019yCat..74824570G
- Keywords:
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- Surveys;
- Stars: white dwarf;
- Parallaxes: trigonometric;
- Photometry