Magnetic inhibition of the recollimation instability in relativistic jets

Abstract

In this paper, we describe the results of three-dimensional relativistic magnetohydrodynamic simulations aimed at probing the role of regular magnetic field on the development of the instability that accompanies recollimation of relativistic jets. In particular, we studied the recollimation driven by the reconfinement of jets from active galactic nuclei (AGN) by the thermal pressure of galactic coronas. We find that a relatively weak azimuthal magnetic field can completely suppress the recollimation instability in such jets, with the critical magnetisation parameter ${\sigma }_{cr}<0.01$. We argue that the recollimation instability is a variant of the centrifugal instability (CFI) and show that our results are consistent with the predictions based on the study of magnetic CFI in rotating fluids. The results are discussed in the context of AGN jets in general and the nature of the Fanaroff-Riley morphological division of extragalactic radio sources in particular.

arXiv comment12 pages, 8 figures, accepted for publication in MNRAS

References in corpus (42)

• Collapsars - Gamma-Ray Bursts and Explosions in "Failed Supernovae"
• Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array
• Stability of Relativistic Jets from Rotating, Accreting Black Holes via Fully Three-Dimensional Magnetohydrodynamic Simulations
• M87 at 90cm: A Different Picture
• Magnetic acceleration of relativistic AGN jets
• The Structure of the M87 Jet: A Transition from Parabolic to Conical Streamlines
• Large scale magnetic fields and their dissipation in GRB fireballs
• MPI-AMRVAC for Solar and Astrophysics
• On Why Disks Generate Magnetic Towers and Collimate Jets
• Jet opening angles and gamma-ray brightness of AGN
• Optical and Radio Polarimetry of the M87 Jet at 0.2" Resolution
• Three-dimensional Relativistic MHD Simulations of Active Galactic Nuclei Jets: Magnetic Kink Instability and Fanaroff-Riley Dichotomy
• Dynamics and High Energy Emission of the Flaring HST-1 Knot in the M 87 Jet
• A numerical simulation of the evolution and fate of a FRI jet. The case of 3C 31
• The structure of hydrodynamic $\gamma$-ray burst jets
• Variability Timescales in the M87 Jet: Signatures of E-Squared Losses, Discovery of a Quasi-period in HST-1, and the Site of TeV Flaring
• Transformation of the Poynting flux into the kinetic energy in relativistic jets
• Discovery of Sub- to Superluminal Motions in the M87 Jet: An Implication of the Acceleration from Sub-relativistic to Relativistic Speeds
• Causality and stability of cosmic jets
• Flaring X-ray Emission from HST-1, a Knot in the M87 Jet
• Kink instabilities in jets from rotating magnetic fields
• Scaling of magnetic reconnection in relativistic collisionless plasmas
• Particle acceleration in astrophysical jets
• The structure of weakly-magnetized $\gamma$-ray burst jets
• Causal connection in parsec-scale relativistic jets: results from the MOJAVE VLBI survey
• Making Fanaroff-Riley I radio sources. Numerical Hydrodynamic 3D Simulations of Low Power Jets
• Two-dimensional Numerical Study for Rayleigh-Taylor and Richtmyer-Meshkov Instabilities in Relativistic Jets
• The internal structure of overpressured, magnetized, relativistic jets
• Reconfinement and Loss of Stability in Jets from Active Galactic Nuclei
• High efficiency photospheric emission entailed by formation of a collimation shock in gamma-ray bursts
• Three Dimensional Structure of Relativistic Jet Formation
• Propagation, cocoon formation, and resultant destabilization of relativistic jets
• Relativistic Centrifugal Instability
• Linear Theory of the Rayleigh-Taylor Instability at a Discontinuous Surface of a Relativistic Flow
• Intermittent hydrodynamic jets in collapsars do not produce GRBs
• Making Faranoff-Riley I radio sources II. The effects of jet magnetization
• The Effect of Expansion on Mass Entrainment and Stability of Super-Alfvénic Jets
• Rayleigh-Taylor Instability in Two-Component Relativistic Jets
• Centrifugally forced Rayleigh-Taylor Instability
• Effect of Interacting Rarefaction Waves on Relativistically Hot Jets
• Dissipation Efficiency of Reconfinement Shocks in Relativistic Jets
• On the Linear Stability of Sheared and Magnetized Jets Without Current Sheets - Non-Relativistic Case

Cited by in corpus (18)

• The role of jet-cocoon mixing, magnetization and shock breakout in neutrino and cosmic-ray emission from short GRBs
• Dynamics of relativistic radio jets in asymmetric environments
• Intermittent mildly magnetized jets as the source of GRBs
• Are Low-Frequency Quasi-Periodic Oscillations seen in accretion flows the disk response to a jet instability?
• Three-dimensional numerical simulations of structured GRB jets
• Making Fanaroff-Riley I radio sources III. The effects of the magnetic field on relativistic jets' propagation and source morphologies
• Extreme blazars: the result of unstable recollimated jets?
• State-of-the-Art Collapsar Jet Simulations Imply Undetectable Subphotospheric Neutrinos
• The polarization of the synchrotron radiation from a recollimated jet: application to high-energy BL Lacs
• High-energy neutrino emission from magnetised jets of rapidly rotating protomagnetars
• On the synthesis of heavy nuclei in protomagnetar outflows and implications for ultra-high energy cosmic rays
• Numerical Investigation of Dynamical and Morphological Trends in Relativistic Jets
• Extreme TeV BL Lacs: a self-consistent stochastic acceleration model
• Linear Stability Analysis of Relativistic Magnetized Jets: Methodology
• Stochastic acceleration in Extreme TeV BL Lacs through MCMC
• Instabilities at recollimation shocks in MHD jets
• Numerical Investigation of Instabilities in Over-pressured Magnetized Relativistic Jets
• How do recollimation-induced instabilities shape the propagation of hydrodynamic relativistic jets?