Observational Evidence for the Coevolution between Supermassive Black Holes and Host Galaxies

Supermassive black holes and their host galaxies appear to be closely linked in their formation and evolution. While the exact origin of their relationship is still under debate, theoretical models often invoke feedback from active galactic nuclei (AGNs) as a crucial mechanism for establishing the correlation. I will discuss our efforts to understand how SMBHs and host galaxies are coevolving. In particular, I will present observational evidence of AGN feedback in young radio AGNs. In the second part of this talk, I will describe a newly discovered candidate of wandering IMBH in NGC 5252.