DA white dwarfs in 2dF QSO Redshift Survey

DOI

We report the spectroscopic identification of close to 1000 hydrogen-rich (DA) white dwarfs discovered in the course of the Anglo-Australian 2dF QSO Redshift Survey (2QZ, Cat. ). We measured the atmospheric parameters of a subsample of 201 stars based on good-quality Balmer line spectra and we determine the 2QZ population characteristics. Over ten per cent of the sample are potential ZZ Ceti variables. We estimate the DA white dwarf birthrate (b_DA_=0.5-1.0x10^-12^/yr/pc^3^) and the scale-height (h=220-300pc) of the population in the thin disc of the Galaxy by combining information acquired in the Palomar-Green, AAT-UVX and new 2QZ surveys. White dwarfs appear related to G and late-F progenitors. A catalogue of 201 DA white dwarfs is presented.

Cone search capability for table J/MNRAS/335/673/tablea1 (Catalogue of 201 DA white dwarfs detected in the 2QZ survey.)

Identifier
DOI http://doi.org/10.26093/cds/vizier.73350673
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/335/673
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/335/673
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/335/673
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/335/673
Provenance
Creator Vennes S.; Smith R.J.; Boyle B.J.; Croom S.M.; Kawka A.; Shanks T.,Miller L.; Loaring N.
Publisher CDS
Publication Year 2006
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy