VizieR Online Data Catalog: DA and DB white dwarfs properties in Gaia DR2 (Tremblay+, 2019)
Abstract
The all-sky and bright sample of DA white dwarfs from Gianninas et al. (2011ApJ...743..138G, Cat. J/ApJ/743/138) drawn from the White Dwarf Catalogue of McCook & Sion (1999ApJS..121....1M, Cat. III/210) is a benchmark to study their fundamental parameters because of the high-signal-to-noise ratio (S/N) of the spectroscopic observations. The relative proximity of the objects also allows for the most precise Gaia data set that we employ in this study. We rely on the 1D atmospheric parameters as published by the authors. We also use a sample of DA white dwarfs drawn from the Gaia-SDSS catalogue of Gentile Fusillo et al. (2019MNRAS.482.4570G, Cat. J/MNRAS/482/4570). We have secured all spectra from the SDSS SkyServer with the new data reduction from DR14 (Abolfathi et al. 2018ApJS..235...42A), and fitted the observations using the same technique and 1D model atmospheres as those employed for our analyses of earlier data releases (Tremblay, Bergeron & Gianninas 2011ApJ...730..128T, Cat. J/ApJ/730/128; Tremblay et al. 2016MNRAS.461.2100T) as well as Gianninas et al. (2011ApJ...743..138G, Cat. J/ApJ/743/138). Fitted spectroscopic parameters of Gaia-SDSS DR1-DR7 DA white dwarfs and Gaia-SDSS-III DR7-DR14 DA white dwarfs are presented in table A1 and A2 respectively.
(2 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- July 2022
- Bibcode:
- 2022yCat..74825222T
- Keywords:
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- Surveys;
- Parallaxes: trigonometric;
- Parallaxes: spectroscopic;
- Stars: fundamental;
- Stars: white dwarf