J/MNRAS/335/673 DA white dwarfs in 2dF QSO Redshift Survey (Vennes+, 2002)
White dwarfs in the 2dF QSO Redshift Survey - I. Hydrogen-rich (DA) stars.
Vennes S., Smith R.J., Boyle B.J., Croom S.M., Kawka A., Shanks T.,
Miller L., Loaring N.
<Mon. Not. R. Astron. Soc. 335, 673 (2002)>
=2002MNRAS.335..673V 2002MNRAS.335..673V
ADC_Keywords: Stars, white dwarf ; Magnitudes
Keywords: stars: fundamental parameters ; white dwarfs ; Galaxy: disc
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, Cat. VII/223). 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=0.5-1.0x10-12/yr/pc3) 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.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 122 201 Catalogue of 201 DA white dwarfs detected in the
2QZ survey.
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See also:
VII/241 : The 2dF QSO Redshift Survey (Croom+ 2004)
J/MNRAS/328/805 : 2dF QSO Redshift Survey. VIII (Outram+, 2001)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [WD 2QZ]
8- 23 A16 --- 2QZ WD 2QZ designation (JHHMMSS.s-DDMMSS)
26- 34 A9 --- Type DA Spectral type
36- 40 F5.1 deg GLON Galactic longitude
43- 47 F5.1 deg GLAT Galactic latitude
50- 53 F4.1 mag Vmag Apparent V magnitude, estimated from the
photographic bJ magnitude and
calculated B-V colour index
56- 59 F4.1 mag VMAG Absolute V magnitude
61-122 A62 --- Notes Notes
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History:
From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 12-Nov-2002