Deep, multiband, and large scale view of the Coma cluster
Adami C., Durret F., Mazure A., Pello R., Picat J.P., Savine C., Scheidegger, R., Ulmer M.P., West M., et al.

Abstract: Clusters of galaxies are believed to be at the intersections of, cosmological filaments and to grow by accreting matter from these, filaments. Such continuous infall has major consequences not only on, clusters, but also on the physics of cluster galaxies. Faint galaxies, are particularly interesting as they are very sensitive to, environmental effects and may have different behavior from those of, bright galaxies. In order to tackle these questions, we used a relatively nearby cluster: Coma. The aim of this survey was to sample the Coma cluster building, history down to faint magnitudes. The present analysis was based on deep , (R=24 or fainter), wide (0.5 deg$^2$) multiband (BVRI Vega system) images of , the Coma cluster obtained with the CFH12K camera at the CFHT and ongoing , Megacam U band observations. We will show how our results can be interpreted , in the framework of the building up process of the coma cluster.