AGN effect on cooling flow dynamics

TL;DR

This paper investigates how active galactic nucleus (AGN) jets influence cooling flow clusters by using 3D hydrodynamic simulations to analyze energy transfer, cavity formation, and jet-medium interactions.

Contribution

It provides a detailed quantification of energy distribution from AGN jets into the intracluster medium, highlighting the limited energy contribution of bubbles.

Findings

Bubbles account for less than 10% of jet energy.

Jet energy is distributed among internal, kinetic, and potential forms.

Simulations reveal the interaction dynamics of jets with cluster plasma.

Abstract

We analyzed the feedback of AGN jets on cooling flow clusters using three-dimensional AMR hydrodynamic simulations. We studied the interaction of the jet with the intracluster medium and creation of low X-ray emission cavities (Bubbles) in cluster plasma. The distribution of energy input by the jet into the system was quantified in its different forms, i.e. internal, kinetic and potential. We find that the energy associated with the bubbles, (pV + gamma pV/(gamma-1)), accounts for less than 10 percent of the jet energy.