Abstract Details

Name: Preeti Kharb
Affiliation: NCRA
Conference ID : ASI2024_1180
Title : Radio-quiet AGN and their Impact on Galaxies
Authors : Preeti Kharb
Authors Affiliation: NCRA-TIFR
Mode of Presentation: Invited
Abstract Category : Plenary
Abstract : Active galactic nuclei (AGN) are the energetic centres of massive galaxies that are powered by mass accretion onto supermassive black holes. AGN are expected to influence galaxy evolution through their outflows, which are especially prominent at radio frequencies and through ionizing radiation emitted from their accretion disks; this process is referred to as `AGN feedback'. The vast majority of AGN are however ``radio-quiet'' and have radio outflows that barely extend beyond their own host galaxies. In this talk, I will present multi-frequency, multi-scale data on small samples of RQ AGN and demonstrate that inspite of their smallness RQ AGN influence the gas and thereby star-formation in their host galaxies through their jets and act as agents of AGN feedback. I will also present data showing that jet formation and propagation in AGN is complex and warrants regular VLBI monitoring to fully understand jet physics in all AGN.