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White dwarfs in the 2dF QSO Redshift Survey - I. Hydrogen-rich (DA) stars

Vennes, Stephane; Smith, R. Chris; Boyle, Brian John; Croom, Scott; Kawka, Adela; Shanks, Tom; Miller, Lance; Loaring, N

Description

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). 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 (bDA = 0.5-1.0 × 10-12 yr-1 pc-3) and the scaleheight (h =...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
URI: http://hdl.handle.net/1885/92231
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1046/j.1365-8711.2002.05658.x

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