The bright galaxy population of five medium redshift clusters. I. Color-magnitude relation, blue fractions, and visual morphology
Aims: 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 ≈1 Mpc2 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
Ascaso, B. et al.
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2008