Colafrancesco, SergioSergioColafrancesco2020-09-172020-09-172008-10-01https://hdl.handle.net/20.500.13025/1082Chinese Journal of Astronomy & Astrophysics Supplement, Vol. 8, p. 61-76We discuss the relevance of multi-frequency analysis of galaxy clusters to unveil several issues that are relevant for Cosmology and Astro-Particle Physics of cosmic structures the nature of Dark Matter, the origin of cosmic rays, the role of magnetic fields and the impact of black holes.cosmology theorygalaxies clustershttp://adsabs.harvard.edu/abs/2008ChJAS...8...61C2008ChJAS...8...61C