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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
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:
FileName Lrecl Records Explanations
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)
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
Bytes Format Units Label Explanations
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)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Nov-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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