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

S. Vennes; R. J. Smith; B. J. Boyle; S. M. Croom; A. Kawka; T. Shanks; L. Miller; N. Loaring

doi:10.1046/j.1365-8711.2002.05658.x

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

S. Vennes, R. J. Smith, B. J. Boyle, S. M. Croom, A. Kawka, T. Shanks, L. Miller, N. Loaring

Research output: Contribution to journal › Review article › peer-review

33 Citations (Scopus)

Abstract

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 (b_DA = 0.5-1.0 × 10^-12 yr^-1 pc^-3) and the scaleheight (h = 220-300 pc) 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.

Original language	English
Pages (from-to)	673-686
Number of pages	14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	335
Issue number	3
DOIs	https://doi.org/10.1046/j.1365-8711.2002.05658.x
Publication status	Published - 21 Sept 2002

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title = "White dwarfs in the 2dF QSO redshift survey - I. Hydrogen-rich (DA) stars",

abstract = "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 = 220-300 pc) 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.",

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author = "S. Vennes and Smith, {R. J.} and Boyle, {B. J.} and Croom, {S. M.} and A. Kawka and T. Shanks and L. Miller and N. Loaring",

year = "2002",

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doi = "10.1046/j.1365-8711.2002.05658.x",

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TY - JOUR

T1 - White dwarfs in the 2dF QSO redshift survey - I. Hydrogen-rich (DA) stars

AU - Vennes, S.

AU - Smith, R. J.

AU - Boyle, B. J.

AU - Croom, S. M.

AU - Kawka, A.

AU - Shanks, T.

AU - Miller, L.

AU - Loaring, N.

PY - 2002/9/21

Y1 - 2002/9/21

N2 - 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 = 220-300 pc) 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.

AB - 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 = 220-300 pc) 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.

KW - Galaxy: disc

KW - Stars: fundamental parameters

KW - White dwarfs

UR - http://www.scopus.com/inward/record.url?scp=0042314017&partnerID=8YFLogxK

U2 - 10.1046/j.1365-8711.2002.05658.x

DO - 10.1046/j.1365-8711.2002.05658.x

M3 - Review article

SN - 0035-8711

VL - 335

SP - 673

EP - 686

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

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

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