========================================================================== J/A+A/487/453 Bright galaxies in 5 medium redshift clusters. I. (Ascaso+, 2008) The following files can be converted to FITS (extension .fit or fit.gz) table3.dat ========================================================================== Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/487/453 ==========================================================================
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Beginning of ReadMe : J/A+A/487/453 Bright galaxies in 5 medium redshift clusters. I. (Ascaso+, 2008) ================================================================================ The bright galaxy population of five medium redshift clusters. I. Color-magnitude relation, blue fractions, and visual morphology. Ascaso B., Moles M., Aguerri J.A.L., Sanchez-Janssen R., Varela J. <Astron. Astrophys., 487, 453-460 (2008)> =2008A&A...487..453A ================================================================================ ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Redshifts Keywords: cosmology: observations - galaxies: clusters: general - galaxies: fundamental parameters Abstract: Using data from five clusters of galaxies within the redshift range 0.15<=z<=0.25, imaged with the Nordic Optical Telescope (NOT) in the central 1Mpc^2^ in very good seeing conditions, we have performed an exhaustive inspection of their bright galaxy population. That range of redshift, where only a small amount of data with the required resolution and quality is available, is particularly important for the understanding of the formation and evolution of clusters of galaxies. We have inspected the color-magnitude relation (CMR) for those clusters and measured the blue fraction of galaxies in their cores to check for evidence of evolution as found in other works. Visual classification of the galaxy morphology has been performed and the morphology-radius relation examined. Description: Two of us (M.M. and J.A.L.A.) imaged five galaxy clusters with the 2.5m Nordic Optical Telescope (NOT) located at the Roque de Los Muchachos Observatory (La Palma). The observations were taken with the Stand Camera, with a field of view of 3'x3', a plate scale of 0.176"/pix, a gain of 1.69e^-^/ADU and a readout noise of 6.36e^-^. All images were taken under photometric sky conditions and very good seeing (between 0.5" and 0.8"). The clusters were observed through two broad-band filters: Gunn-r' (r) and Bessel B (B).