Details on the event

01/09/2018

Warning: following the coronavirus emergency, all the talks will be given remotely online. The link to connect to the seminar will be available in due time. A playlist of the remote talks already online is available on our YouTube channel »

Astrophysics Talk

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.

Download the slides (pdf)