Poster Presentation

Elucidating co-evolutions among AGN, galaxies, and ICM from an AGN survey with VERA

Author(s): Aika Oki, Hiroki Okino (UTokyo/NAOJ), Takuya Akahori (NAOJ/SKAO), Kohei Kurahara, Mareki Honma, Kazuhiro Hada, Hiroshi Nagai (NAOJ), Kotaro Niinuma (Yamaguchi Univ.), Tetsu Kitayama (Toho Univ.), Shutaro Ueda (ASIAA), Manabu Ishida (ISAS)

Presenter: Aika Oki (The University of Tokyo / Mizusawa VLBI Observatory, NAOJ)

Active galactic nucleus (AGN) activity such as jets is widely recognized as a key mechanism of the evolution of the intracluster medium (ICM). The efficiency of AGN feedback is, however, questioned by recent discovery of the coexistence of AGN jets and intense cooling of the ICM in the Phoenix galaxy cluster. Our EAVN observations for the Brightest Cluster Galaxy’s AGN at the center of the Phoenix galaxy cluster revealed the importance of resolving the central complex nature, such as young jets, diffuse galactic components and time variability of AGN core, which are essential to understand the heating history of the ICM by AGN jets. In order to expand our study, we will conduct a large VLBI survey of AGN in X-ray selected galaxy clusters with VERA over the next few years. In this poster, we report our previous and on-going VLBI studies and introduce our VERA project.