/ftp/cats/VII/241



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VII/241             The 2dF QSO Redshift Survey                (Croom+ 2004)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	2qz.dat ngp_rep.dat sgp_rep.dat 6qz_rep.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VII/241
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drwxr-xr-x 257 cats archive 8192 Feb 8 10:28 [Up] drwxr-xr-x 2 cats archive 4096 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 494 Dec 19 2022 .message -r--r--r-- 1 cats archive 11474 Jul 5 2017 ReadMe -r--r--r-- 1 cats archive 3891997 Oct 21 2004 2qz.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 3419 Jun 4 2006 6qz_rep.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -rw-r--r-- 1 cats archive 1219 Jul 5 2017 +footg5.gif -rw-r--r-- 1 cats archive 4207 Jul 5 2017 +footg8.gif -r--r--r-- 1 cats archive 32026 Jun 4 2006 ngp_rep.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 36051 Jun 4 2006 sgp_rep.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 9045 Oct 21 2004 test.ps.gz [Uncompressed]
Beginning of ReadMe : VII/241 The 2dF QSO Redshift Survey (Croom+ 2004) ================================================================================ The 2dF QSO Redshift Survey (2QZ) Croom S.M., Smith R.J., Boyle B.J., Shanks T., Miller L., Outram P.J., Loaring N.S. <Mon. Not. R. Astron. Soc. 349, 1397 (2004)> =2004MNRAS.349.1397C ================================================================================ ADC_Keywords: Active gal. nuclei; QSOs; Redshifts; Spectroscopy; Stars, white dwarf; Stars, normal; Galaxies, spectra Keywords: catalogues - surveys - white dwarfs - galaxies: active - quasars: general - galaxies: Seyfert Abstract: The final catalogue of the 2dF QSO Redshift Survey (2QZ) is based on Anglo-Australian Telescope 2dF spectroscopic observations of 44576 colour-selected (ub_J_r) objects with 18.25<b_J_< 20.85 selected from automated plate measurement scans of UK Schmidt Telescope (UKST) photographic plates. The 2QZ comprises 23338 quasi-stellar objects (QSOs), 12292 galactic stars (including 2071 white dwarfs) and 4558 compact narrow emission-line galaxies. We obtained a reliable spectroscopic identification for 86 per cent of objects observed with 2dF. We also report on the 6dF QSO Redshift Survey (6QZ), based on UKST 6dF observations of 1564 brighter (16<b_J_<18.25) sources selected from the same photographic input catalogue. In total, we identified 322 QSOs spectroscopically in the 6QZ. The completed 2QZ is, by more than a factor of 50, the largest homogeneous QSO catalogue ever constructed at these faint limits (b_J_<20.85) and high QSO surface densities (35 QSOs/deg^2^). As such, it represents an important resource in the study of the Universe at moderate-to-high redshifts. Description: Spectroscopic observations of the input catalogue were made with the 2dF instrument at the Anglo-Australian Telescope (AAT; the 2QZ sample) and the 6dF instrument at the UKST (the 6QZ sample). 2dF spectroscopic observations began in January 1997 and were completed in April 2002. Six-degree Field observations were performed over the period 2001 March-2002 September.