Evolution and feedback of AGN Jets of different Cosmic-ray Composition
arXiv:2301.06025 · doi:10.1093/mnras/stad185
Abstract
Jet feedback from active galactic nuclei (AGN) is one of the most promising mechanisms for suppressing cooling flows in cool-core clusters. However, the composition of AGN jets and bubbles remains uncertain; they could be thermally dominated, or dominated by cosmic-ray proton (CRp), cosmic-ray electron (CRe), or magnetic energy. In this work, we investigate the evolution and feedback effects of CRp and CRe dominated jets by conducting 3D magnetohydrodynamic simulations of AGN jet-inflated bubbles in the intracluster medium using the FLASH code. We present the evolution of their energies, dynamics and heating, and model their expected cavity-power versus radio-luminosity relation (). We find that bubbles inflated by CRe dominated jets follow a very similar dynamical evolution to CRp dominated bubbles even though CRe within bubbles suffer significantly stronger synchrotron and inverse-Compton cooling. This is because, as CRe lose their energy, the jet-inflated bubbles quickly become thermally dominated within Myr. Their total energy stops decreasing with CR energy and evolves similarly to CRp dominated bubbles. The ability of CRe and CRp dominated bubbles to heat the intracluster medium is also comparable; the cold gas formed via local thermal instabilities is well suppressed in both cases. The CRp and CRe bubbles follow different evolutionary trajectories on the plane, but the values are broadly consistent with observed ranges for FRI sources. We also discuss observational techniques that have potential for constraining the composition of AGN jets and bubbles.
arXiv comment13 pages, 10 figures
References in corpus (49)
- The Structure of Cold Dark Matter Halos
- A Multi-Code Analysis Toolkit for Astrophysical Simulation Data
- Relativistic Jets in Active Galactic Nuclei
- Cluster Magnetic Fields
- Mechanical Feedback from Active Galactic Nuclei in Galaxies, Groups, and Clusters
- A relationship between AGN jet power and radio power
- Radiative Efficiency and Content of Extragalactic Radio Sources: Toward a Universal Scaling Relation Between Jet Power and Radio Power
- Cause and Effect of Feedback: Multiphase Gas in Cluster Cores Heated by AGN Jets
- Feedback Heating by Cosmic Rays in Clusters of Galaxies
- The Cumulative Bakground of High-Energy Neutrinos from Starburst Galaxies
- Cosmic Ray Electrons in Groups and Clusters of Galaxies: Primary and Secondary Populations from a Numerical Cosmological Simulation
- Radio Bubbles in Clusters
- Radio-loud AGN in the first LoTSS data release: The lifetimes and environmental impact of jet-driven sources
- How AGN Jets Heat the Intracluster Medium -- Insights from Hydrodynamic Simulations
- Charged-Particle Multiplicity in Proton-Proton Collisions
- The Fermi Bubbles: Supersonic AGN Jets with Anisotropic Cosmic Ray Diffusion
- Radiative Processes in High Energy Astrophysics
- Heating the hot atmospheres of galaxy groups and clusters with cavities: the relationship between jet power and low-frequency radio emission
- Particle content, radio-galaxy morphology and jet power: all radio-loud AGN are not equal
- Particle Energies and Filling Fractions of Radio Bubbles in Cluster Cores
- Cosmic ray feedback heating of the intracluster medium
- Cosmic-ray hydrodynamics: Alfvén-wave regulated transport of cosmic rays
- A New Numerical Scheme for Cosmic Ray Transport
- Interplay among Cooling, AGN Feedback and Anisotropic Conduction in the Cool Cores of Galaxy Clusters
- Winds, Clumps, and Interacting Cosmic Rays in M82
- Simulations of the dynamics of magnetised jets and cosmic rays in galaxy clusters
- Do sound waves transport the AGN energy in the Perseus Cluster?
- A representative survey of the dynamics and energetics of FRII radio galaxies
- The Equipartition Magnetic Field Formula in Starburst Galaxies: Accounting for Pionic Secondaries and Strong Energy Losses
- Which AGN Jets Quench Star Formation in Massive Galaxies?
- AGN Heating in Simulated Cool-Core Clusters
- Nonthermal Particles and Radiation Produced by Cluster Merger Shocks
- The duty cycle of radio galaxies revealed by LOFAR: remnant and restarted radio source populations in the Lockman Hole
- The Impact of Radio AGN Bubble Composition on the Dynamics and Thermal Balance of the Intracluster Medium
- Can conduction induce convection? The non-linear saturation of buoyancy instabilities in dilute plasmas
- Kinetic AGN Feedback Effects on Cluster Cool Cores Simulated using SPH
- Inefficient Driving of Bulk Turbulence by Active Galactic Nuclei in a Hydrodynamic Model of the Intracluster Medium
- Kinetic or thermal AGN feedback in simulations of isolated and merging disk galaxies calibrated by the M-sigma relation
- Cosmic Ray-Dominated AGN Jets and the Formation of X-ray Cavities in Galaxy Clusters
- A relativistic model of the radio jets in 3C 296
- Unveiling the composition of radio plasma bubbles in galaxy clusters with the Sunyaev-Zel'dovich effect
- The Spatially Uniform Spectrum of the Fermi Bubbles: the Leptonic AGN Jet Scenario
- Simulating the transport of relativistic electrons and magnetic fields injected by radio galaxies in the intracluster medium
- The Particle Content of Extragalactic Jets
- Suppression of AGN-Driven Turbulence by Magnetic Fields in a Magnetohydrodynamic Model of the Intracluster Medium
- Energetics of X-ray Cavities and Radio Lobes in Galaxy Clusters
- Starburst and post-starburst high-redshift protogalaxies: The feedback impact of high energy cosmic rays
- Interactions between Ultra-High-Energy Particles and Protogalactic Environments
- Emission from hadronic and leptonic processes in galactic jet-driven bubbles