Numerical Modeling of AGN Jets: Formation of Magnetically Dominated Lobes and Stability Properties of Current-carrying Jets

TL;DR

This paper uses 3D MHD simulations to explore the structure, stability, and formation of magnetically dominated jets and lobes in AGN, focusing on the magnetic tower model and current-driven instabilities.

Contribution

It provides new insights into the formation, stability, and dynamics of AGN jets and lobes through detailed numerical modeling within the magnetic tower framework.

Findings

Identification of MHD wave structures in jets

Analysis of radial force balance and collimation

Observation of current-driven instabilities causing jet wiggles

Abstract

We argue the behavior of Poynting flux-dominated outflows from AGN in the galactic cluster systems by performing three-dimensional MHD simulations within the framework of the "magnetic tower" model. Of particular interests are the structure of MHD waves, the cylindrical radial force balance, the (de)collimation, and the stability properties of magnetic tower jets. Transition between the jet/lobe and the formation of wiggling jet by growing current-driven instability are discussed.