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VII/250 The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
2dfgrs.dat spectra.dat parent.dat ngp.dat sgp.dat ran.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VII/250
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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 512 Dec 19 2022 .message
-r--r--r-- 1 cats archive 15554 Feb 11 2010 ReadMe
-r--r--r-- 1 cats archive 14046784 Dec 18 2007 2dfgrs.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-rw-r--r-- 1 cats archive 1649 Sep 24 2012 +footg5.gif
-rw-r--r-- 1 cats archive 13148 Sep 24 2012 +footg8.gif
-r--r--r-- 1 cats archive 8398578 Dec 22 2007 ngp.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 13524060 Dec 22 2007 parent.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 2910972 Dec 22 2007 ran.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 10973319 Dec 22 2007 sgp.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 6692691 Dec 18 2007 spectra.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :VII/250 The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
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The 2dF Galaxy Redshift Survey (2dFGRS)
Colless M., Dalton G., Maddox S., Sutherland W., Norberg P., Cole S.,
Bland-Hawthorn J., Bridges T., Cannon R., Collins C., Couch W., Cross N.,
Deeley K., de Propris R., Driver S.P., Efstathiou G., Ellis R.S.,
Frenk C.S., Glazebrook K., Jackson C., Lahav O., Lewis I., Lumsden S.,
Madgwick D., Peacock J.A., Peterson B.A., Price I., Seaborne M., Taylor K.
<Mon. Not. R. Astron. Soc. 328, 1039 (2001)>
=2001MNRAS.328.1039C
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ADC_Keywords: Surveys ; Galaxy catalogs ; Redshifts ; Galaxies, photometry
Keywords: Surveys, galaxies: clusters: general ;
Galaxies: distances and redshifts ; Cosmology: observations ;
Large-scale structure of Universe
Description:
The 2dF Galaxy Redshift Survey (2dFGRS) is a major spectroscopic
survey taking full advantage of the unique capabilities of the 2dF
facility built by the Anglo-Australian Observatory. The 2dFGRS is
integrated with the 2dF QSO survey (2QZ, Cat. VII/241).
The 2dFGRS obtained spectra for 245591 objects, mainly galaxies,
brighter than a nominal extinction-corrected magnitude limit of
b_J_=19.45. Reliable (quality>=3) redshifts were obtained for 221414
galaxies. The galaxies cover an area of approximately 1500 square
degrees selected from the extended APM Galaxy Survey in three regions:
a North Galactic Pole (NGP) strip, a South Galactic Pole (SGP) strip,
and random fields scattered around the SGP strip.
Redshifts are measured from spectra covering 3600-8000 Angstroms at a
two-pixel resolution of 9.0 Angstrom and a median S/N of 13 per pixel.
All redshift identifications are visually checked and assigned a
quality parameter Q in the range 1-5; Q>=3 redshifts are 98.4%
reliable and have an rms uncertainty of 85 km/s. The overall redshift
completeness for Q>=3 redshifts is 91.8% but this varies with
magnitude from 99% for the brightest galaxies to 90% for objects at
the survey limit.
The 2dFGRS data base is available on the World Wide Web at
http://www.mso.anu.edu.au/2dFGRS/.