Title:Galaxy population in 20Mpc^2 field of RXJ1347-11 cluster complex at z=0.5

Abstract:
I will present our multi-wavelength study of a 20x20Mpc^2 field around the very 
massive cluster RXJ1347.5-1145 at z=0.45 comprising two more clusters, >30 
groups and interconnecting filaments. We utilize Megacam and Suprimecam 
photometry, Galex NUV imaging, HST-CLASH data, XMM/Newton x-ray observations, 
however, at the heart of the study are >2500 VIMOS spectra taken in three ESO 
periods on 9 pointings. We contrast galaxy structure to spec. parameters like 
AGN/SF activity, gas metallicities, kinematics, as a function of stellar mass. 
We examine the evolutionary status of member galaxies in all environments 
provided by this rich cosmic structure as revealed by number densities and 
shear maps.