Spatial features of non-thermal SZ effect in galaxy clusters
  We investigate the spatial behaviour of the total comptonization parameter $y_{tot}$ evaluated for a galaxy cluster containing two population of electrons: the thermal population, with energy around some KeV and whose trace is evident in the X-ray emission of the ICM (Intra-Cluster Medium), and the relativistic population, which give rise to the radio halo emission found in several clusters of galaxies. We present the first results obtained from our analysis showing that there are remarkable features in such spatial trend, which might throw a new light in understanding the cluster internal processes. 
E. Palladino (1), S. Colafrancesco (2) & P. Marchegiani (1) ((1)   Department of physics, University of Rome "La Sapienza", ...