Cátálogos de cúmulos de galaxias: Submuestra C-P04-I de cúmulos brillantes en rayos X (ROSAT-SDSS) y submuestra C-K07-I de cúmulos seleccionados en el óptico (SDSS)

Abstract

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.