The environment of radio sources in the VLA-COSMOS survey field

Abstract

Context. Several problems with the process of galaxy formation are still open. One of them is the role played by active galactic nuclei (AGNs) phenomena in galaxy build-up and, in particular, in quenching star formation (SF). On the other hand, the theory of AGN formation predicts that these phenomena are correlated with the host-galaxy environment, therefore opening links among SF quenching, environment and AGN phenomena in galaxy formation, and the evolution paradigm.