J/A+A/504/347 Galaxy properties in clusters (Coenda+, 2009)
Galaxy properties in clusters: dependence on the environment and the cluster
identification techniques.
Coenda V., Muriel H.
<Astron. Astrophys., 504, 347-358 (2009)>
=2009A&A...504..347C 2009A&A...504..347C
ADC_Keywords: Clusters, galaxy ; X-ray sources ; Redshifts ; Velocity dispersion
Keywords: galaxies: clusters - catalogs - general -
galaxies: fundamental parameters - X-rays: galaxies: clusters
Abstract:
We investigate the dependence of several galaxy properties on the
environment and cluster identification techniques.
Description:
We select clusters of galaxies from two catalogues based on the SDSS:
the ROSAT-SDSS galaxy cluster survey, which is an X-ray selected
cluster sample and the MaxBCG catalogue, in which clusters are
optically selected. Based on a volume limited sample of galaxies drawn
from the spectroscopic DR5 SDSS, we constructed sub-samples of
clusters of galaxies with more than ten members. Scaling relations as
well as segregation of galaxy properties as a function of the
normalized clustocentric radii are analyzed. The properties of
galaxies in clusters are compared with those of field galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 58 49 C-P04-I cluster sample (Popesso+ J/A+A/423/449)
tablea2.dat 58 209 C-K07-I cluster sample (Koester+ J/ApJ/660/239)
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See also:
J/A+A/423/449 : RASS-SDSS Galaxy Clusters Survey. I. (Popesso+, 2004)
J/ApJ/660/239 : MaxBCG catalog of galaxy clusters from SDSS (Koester+ 2007)
Byte-by-byte Description of file: tablea1.dat tablea2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (J2000)
4- 5 I2 min RAm Right ascension (J2000)
7- 10 F4.1 s RAs Right ascension (J2000)
12 A1 --- DE- Declination sign (J2000)
13- 14 I2 deg DEd Declination (J2000)
16- 17 I2 arcmin DEm Declination (J2000)
19- 22 F4.1 arcsec DEs Declination (J2000)
24- 28 F5.3 --- z Redshift
30- 36 F7.2 km/s sigma Velocity dispersion
38- 46 E9.4 solMass Mvir Virial mass (in solMass/h)
48- 52 F5.3 Mpc Rvir Virial radius (in Mpc/h)
54- 58 F5.3 Mpc R200 Radius at the mean density of 200 times the
mean density of the universe (in Mpc/h)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Nov-2009