Francesco La Barbera (1999-2002)
Abstract
We study the photometric properties of the galaxy populations in the clusters AC118 (z=0.31) and EIS0048 (z=0.64) on the basis of a large wavelength baseline, from UV to NIR restframe wavebands. New data have been collected at the ESO NTT telescope (EMMI and SOFI instruments) for AC118, and at the ESO VLT telescope for EIS0048 (FORS2 and ISAAC instruments). Cluster members are selected by the photometric redshift technique, allowing to obtain a large sample (N>100) of cluster members, and to study the whole cluster population without any bias towards particular spectral types. We analyse (1) the spatial distribution of galaxy populations, (2) the color-magnitude diagrams (star formation rate and Butcher-Oelmer effect), and (3) the multi- waveband properties of the light distribution in galaxies (structural parameters, internal color gradients, scaling laws like the re – relation, etc…).