The amazing radio nature of active galaxies at 3 GHz VLA-COSMOS

Posted on June 15, 2021Comments Off on The amazing radio nature of active galaxies at 3 GHz VLA-COSMOS

Today I was invited by Prof Franco Vazza at the University of Bologna to give a talk at their weekly colloquium. What an honour and pleasure that was! Of course I had to talk about the amazing radio sources in the COSMOS field and our research the past 5 years.

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.

My talked involved a quick journey of galaxy evolution and the importance of radio AGN in providing feedback to their hosts, a brief mention of our work on relating the radio structures of AGN to physical properties, their host and their large-scale environment (Vardoulaki et al. 2021), and finally an explanation of how we play classification games in the high resolution and high sensitivity radio universe (Vardoulaki et al. 2019 & in prep.). Our testbed, the COSMOS field, and the data the 3 GHz VLA-COSMOS.

You can find the slides for my talk here.

Comments Off on The amazing radio nature of active galaxies at 3 GHz VLA-COSMOS