The amazing radio nature of active galaxies at 3 GHz VLA-COSMOS
Eleni Vardoulaki (Thüringer Landessternwarte, Germany)
Tuesday 15/06/2021 @ 14:00, Sala IV piano Battiferro
Why do we study extended radio active galactic nuclei (AGN)? Not just because they look so beautiful in the radio sky, with all these magnificent shapes and structures that captivate you. They also play a very important role in galaxy evolution by providing the necessary feedback to their host, via jet/radio-mode feedback. This mechanism is in place to prevent galaxies from growing overly massive, and explains why we do not see overly massive galaxies in the local universe. I will take you through a quick journey of galaxy evolution and the importance of radio AGN in providing feedback to their hosts. I will briefly mention our work on relating the radio structures of AGN to physical properties, their host and their large-scale environment, and I will explain how we play classification games in the high resolution and high sensitivity radio universe. Our testbed, the COSMOS field, and the data the 3 GHz VLA-COSMOS.