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名稱Title
2021天文年會
國立嘉義大學蘭潭校區
5月21日至23日

論文摘要

Evolution of AGN Jets of Different Cosmic-ray Composition

[ Poster ]

Lin, Yen-Hsing (NTHU); Yang, Hsiang-Yi Karen (NTHU)

AGN jet feedback is believed to be an important mechanism for suppressing cooling flows in cool-core (CC) clusters. However, the composition of AGN jets and bubbles remains uncertain; they could be dominated by thermal, cosmic-ray proton (CRp), cosmic-ray electron (CRe), or magnetic energy. In this work we investigate how AGN jets of different CR composition would impact the process of AGN feedback in CC clusters. We carry out 3D magnetohydrodynamic simulations of AGN jet-inflated bubbles in the intracluster medium (ICM) using the FLASH code. Specifically, we focus two cases: CRp-dominated jets and CRe-dominated jets. We'll present the evolution of energies, dynamics and heating of the jet-inflated bubbles. We also calculated the expected synchrotron emission of the bubbles to compare with the observations.