Interactions Between Radio Galaxies and Cluster Shocks - 1: Jet Axes Aligned with Shock Normals

Abstract

We report from a study utilizing 3D MHD simulations, including cosmic-ray electrons, of the interactions between radio galaxies (RGs) and dynamically active ICMs. Here we consider interactions involving plane ICM shocks having Mach numbers 2--4 and their normals aligned with steady, active bipolar RG jets penetrating uniform, stationary ICMs. Shock impact disrupts the pre-formed RG jet cocoons into ring vortex structures. Sufficiently strong post-shock winds can stop and even reverse the upwind jet, and strip jets to virtually "naked" states, leaving them without a surrounding cocoon. Strong shock-induced vorticity can also disrupt the downwind jet, so that the ring vortex remnant of the cocoons appears ahead of that jet's visible terminus. Magnetic field amplification in the ring vortex can significantly enhance its synchrotron emissions well after the vortex becomes isolated from the RG and its fresh CRe supply. We examine these dynamics and their observable consequences in detail.

arXiv comment29 Pages, 15 figures, accepted for publication in the Astrophysical Journal

References in corpus (33)

• Formation of Galaxy Clusters
• Tracing cosmic evolution with clusters of galaxies
• Astrophysical gyrokinetics: kinetic and fluid turbulent cascades in magnetized weakly collisional plasmas
• A Textbook Example of a Bow Shock in the Merging Galaxy Cluster 1E0657-56
• Testing X-ray Measurements of Galaxy Clusters with Cosmological Simulations
• The Quiescent Intracluster Medium in the Core of the Perseus Cluster
• Diffuse Radio Emission from Galaxy Clusters
• The Energy Spectrum of Primary Cosmic Ray Electrons in Clusters of Galaxies and Inverse Compton Emission
• A low-frequency radio halo associated with a cluster of galaxies
• A Divergence-Free Upwind Code for Multidimensional Magnetohydrodynamic Flows
• The Case for Electron Re-Acceleration at Galaxy Cluster Shocks
• The faint radio sky: radio astronomy becomes mainstream
• LOFAR, VLA, and Chandra observations of the Toothbrush galaxy cluster
• On the Formation of Cluster Radio Relics
• Evidence for particle re-acceleration in the radio relic in the galaxy cluster PLCKG287.0 +32.9
• Particle content, radio-galaxy morphology and jet power: all radio-loud AGN are not equal
• The Physics of Galaxy Cluster Outskirts
• Magnetic Fields, Relativistic Particles, and Shock Waves in Cluster Outskirts
• Deep radio observations of the radio halo of the bullet cluster 1E 0657-55.8
• Cluster mergers, core oscillations, and cold fronts
• Simulating Electron Transport and Synchrotron Emission in Radio Galaxies: Shock Acceleration and Synchrotron Aging in Three-Dimensional Flows
• Cold Fronts: Probes of Plasma Astrophysics in Galaxy Clusters
• Wideband VLA Observations of Abell 2256 I: Continuum, Rotation Measure and Spectral Imaging
• The particle content of low-power radio galaxies in groups and clusters
• Radio Galaxy Zoo: The Distortion of Radio Galaxies by Galaxy Clusters
• Radio Galaxy NGC 1265 unveils the Accretion Shock onto the Perseus Galaxy Cluster
• 3D Simulations of MHD Jet Propagation Through Uniform and Stratified External Environments
• An Efficient Numerical Scheme for Simulating Particle Acceleration in Evolving Cosmic-Ray Modified Shocks
• Using Collisions of AGN Outflows with ICM Shocks as Dynamical Probes
• Narrow head-tail radio galaxies at very high resolution
• Evolutionary phases of merging clusters as seen by LOFAR
• Ultra-steep spectrum emission in the merging galaxy cluster Abell 1914
• Interaction of Fanaroff-Riley class II radio jets with a randomly magnetised intra-cluster medium

Cited by in corpus (25)

• Unexpected Circular Radio Objects at High Galactic Latitude
• Radio footprints of a minor merger in the Shapley Supercluster: From supercluster down to galactic scales
• Revived Fossil Plasma Sources in Galaxy Clusters
• Discovery of a new extragalactic circular radio source with ASKAP: ORC J0102-2450
• Intracluster magnetic filaments and an encounter with a radio jet
• Simulating the transport of relativistic electrons and magnetic fields injected by radio galaxies in the intracluster medium
• How merger-driven gas motions in galaxy clusters can turn AGN bubbles into radio relics
• Recent Progress in Modeling the Macro- and Micro-Physics of Radio Jet Feedback in Galaxy Clusters
• Jets from MRC 0600-399 bent by magnetic fields in the cluster Abell 3376
• Two striking head-tail galaxies in the galaxy cluster IIZW108: insights into transition to turbulence, magnetic fields and particle re-acceleration
• Tempestuous life beyond R500: X-ray view on the Coma cluster with SRG/eROSITA. II. Shock & Relic
• A Fresh Look at Narrow-Angle Tail Radio Galaxy Dynamics, Evolution and Emissions
• Life cycle of cosmic-ray electrons in the intracluster medium
• Particle re-acceleration and diffuse radio sources in the galaxy cluster Abell 1550
• Simulations of Precessing Jets and the Formation of X-shaped Radio Galaxies
• VLA resolves unexpected radio structures in the Perseus cluster of galaxies
• Simulated Interactions Between Radio Galaxies and Cluster Shocks -- 2: Jet Axes Orthogonal to Shock Normals
• A new look at old friends. I. Imaging classical radio galaxies with uGMRT and MeerKAT
• Shocked Narrow-Angle Tail Radio Galaxies: Simulations and Emissions
• Luminous giants populate the dense Cosmic Web: The radio luminosity-environmental density relation for radio galaxies in action
• The evolution of cosmic ray electrons in the cosmic web: seeding by AGN, star formation and shocks
• The structure of the giant radio fossil in the Ophiuchus galaxy cluster
• Observations and Simulations of Radio Emission and Magnetic Fields in Minkowski's Object
• The shocking features in the closest rich galaxy cluster Norma
• On the Origin of Diffuse Radio Emission in Abell 85 -- Insights from new GMRT Observations