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J/AJ/125/1660 Distant compact groups from DPOSS (Iovino+, 2003)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
table1.dat table2.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/AJ/125/1660
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-r--r--r-- 1 cats archive 6052 Nov 16 2003 ReadMe
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-r--r--r-- 1 cats archive 5376 May 26 2003 table1.dat [txt] [txt.gz] [fits] [fits.gz] [html]
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Beginning of ReadMe :J/AJ/125/1660 Distant compact groups from DPOSS (Iovino+, 2003)
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A new sample of distant compact groups from the
Digitized Second Palomar Observatory Sky Survey.
Iovino A., de Carvalho R.R., Gal R.R., Odewahn S.C., Lopes P.A.A.,
Mahabal A., Djorgovski S.G.
<Astron. J. 125, 1660 (2003)>
=2003AJ....125.1660I
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ADC_Keywords: Surveys ; Clusters, galaxy ; Photometry
Keywords: galaxies: clusters: general - methods: statistical - surveys
Abstract:
We have identified 84 small, high-density groups of galaxies out to
z 0.2 in a region of 2000deg^2^ around the north Galactic pole using
the digitized Second Palomar Observatory Sky Survey. The groups have
at least four galaxies satisfying more stringent criteria than those
used by Hickson in his pioneering work in 1982: the adopted limiting
surface brightness for each group is brighter (24mag/arcsec^2^ instead
of 26mag/arcsec^2^), and the spread in magnitude among the member
galaxies is narrower (2mag instead of 3). We also adopt a slightly
modified version of the isolation criterion used by Hickson, in order
to avoid rejecting groups with projected nearby faint background
galaxies. A 10% contamination rate due to projection effects is
expected for this sample based on extensive simulations.