Making Faranoff-Riley I radio sources II. The effects of jet magnetization
arXiv:1812.00657 · doi:10.1051/0004-6361/201834512
Abstract
Radio sources of low power are the most common in the universe. Their jets typically move at nonrelativistic velocity and show plume-like morphologies that in many instances appear distorted and bent. We investigate the role of magnetic field on the propagation and evolution of low-power jets and the connection between the field intensity and the resulting morphology. The problem is addressed by means of three-dimensional magnetohydrodynamic (MHD) simulations. We consider supersonic jets that propagate in a stratified medium. The ambient temperature increases with distance from the jet origin maintaining constant pressure. Jets with low magnetization show an enhanced collimation at small distances with respect to hydrodynamic (HD) cases studied in a previous paper. These jets eventually evolve in a way similar to the HD cases. Jets with higher magnetization are affected by strong nonaxisymmetric modes that lead to the sudden jet energy release. From there on, distorted plumes of jet material move at subsonic velocities. This transition is associated with the formation of structures reminiscent of the `warm spots' observed in wide-angle-tail (WAT) sources.
arXiv commentIn press on Astronomy & Astrophysics
References in corpus (15)
- PLUTO: a Numerical Code for Computational Astrophysics
- The PLUTO Code for Adaptive Mesh Computations in Astrophysical Fluid Dynamics
- High Resolution 3D Relativistic MHD Simulations of Jets
- A Particle Module for the PLUTO code: II - Hybrid Framework for Modeling Non-thermal emission from Relativistic Magnetized flows
- Simulating the interaction of jets with the intra-cluster medium
- Galaxy Groups at 0.3 <= z <= 0.55. I. Group Properties
- The host galaxy/AGN connection in nearby early-type galaxies. Is there a miniature radio-galaxy in every "core" galaxy?
- Simulations of the dynamics of magnetised jets and cosmic rays in galaxy clusters
- Making Fanaroff-Riley I radio sources. Numerical Hydrodynamic 3D Simulations of Low Power Jets
- RAiSE II: resolved spectral evolution in radio AGN
- Spectral evolution of flaring blazars from numerical simulations
- The origin of wide-angle tailed radio galaxies
- A wide angle tail radio galaxy in the COSMOS field: evidence for cluster formation
- 3D Relativistic MHD numerical simulations of X-shaped radio sources
- Radio-loud AGN variability from three-dimensional propagating relativistic jets
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- The different flavors of extragalactic jets: the role of relativistic flow deceleration
- Powerful AGN jets and unbalanced cooling in the hot atmosphere of IC 4296
- Making Fanaroff-Riley I radio sources III. The effects of the magnetic field on relativistic jets' propagation and source morphologies
- Jet-Feedback on kpc scales: a review
- Cosmology with powerful radio-loud AGNs
- RAiSERed: radio continuum redshifts for lobed AGNs
- On the large scale morphology of Hercules A: destabilized hot jets?
- Double flows anchored in a Kerr black hole horizon. I. Meridionally self-similar MHD models with loading terms
- Investigating the large-scale environment of wide-angle tailed radio galaxies in the local Universe
- The phase-space of tailed radio galaxies in massive clusters
- AGN hosting jets. I: A semi-analytical model for the evolution of radio galaxies
- Mapping the emission and spectral properties of the FRI radio galaxy 3C 449 with LOFAR and the VLA