Can MAD accretion disks launching structured jets explain both GRB and AGN engines? Magnetically arrested accretion disks launching structured jets in application to GRB and AGN engines
arXiv:2205.08729 · doi:10.1051/0004-6361/202244196
Abstract
We explore the formation, energetics, and geometry of relativistic jets along with the variability of their central engine. We study both fast and slowly rotating black holes and address our simulations to active galaxy (AGN) centers and gamma ray burst (GRB) engines. The structured jets are postulated to account for emission properties of high energy sources across the mass scale, launched from stellar mass black holes in GRBs and from supermassive black holes in AGNs. Their active cores contain magnetized accretion disks and rotation of the Kerr black hole provides a mechanism for jet launching. This process works most effectively if the mode of accretion is magnetically arrested (MAD). In this mode, the modulation of jets launched from the engine is related to internal instabilities in the accretion flow that operate on smallest time and spatial scales. As these scales are related to the light-crossing time and the black hole gravitational radius, the universal model of jet-disk connection is expected to scale with the black hole mass. We investigate the jet-disk connection by means of 3D GR MHD simulations of the MAD accretion in Kerr metric. We quantify the variability of the disk by means of a Fourier analysis. We found that the evolution is governed by the physical parameters of the engine such as the black hole spin and disk size as well as its magnetization, and we applied our scenarios to typical types of sources in AGN and GRB classes. We found that the MAD scenario is applicable to AGN engines and supports persistent jet emission. It can also be applied to GRBs, as it gives the variability pattern roughly consistent with observations. However, in some cases, strong magnetic fields may lead to jet quenching, and this effect is found to be important mainly for GRB jets. We speculate that it may be related to the strength of magnetically driven winds from the GRB engines.
15 pages; 11 figures; A\&A, in press
References in corpus (27)
- The Influence of Magnetic Field Geometry on the Evolution of Black Hole Accretion Flows: Similar Disks, Drastically Different Jets
- Black hole flares: ejection of accreted magnetic flux through 3D plasmoid-mediated reconnection
- Magnetically Arrested Disks and Origin of Poynting Jets: Numerical Study
- Relativistic simulations of black hole-neutron star coalescence: the jet emerges
- Magnetohydrodynamic Simulations of Active Galactic Nucleus Disks and Jets
- Rapid Variability of Sgr A* across the Electromagnetic Spectrum
- Accretion of cool stellar winds on Sgr A*: another puzzle of the Galactic Centre?
- Magnetic Flux of Progenitor Stars Sets Gamma-ray Burst Luminosity and Variability
- Jet Luminosity of Gamma-ray Bursts: Blandford-Znajek Mechanism v.s. Neutrino Annihilation Process
- Magnetohydrodynamic Simulations of Binary Neutron Star Mergers in General Relativity: Effects of Magnetic Field Orientation on Jet Launching
- The Fate of the Merger Remnant in GW170817 and its Imprint on the Jet Structure
- Long-term evolution of neutron-star merger remnants in general relativistic resistive-magnetohydrodynamics with a mean-field dynamo term
- X-ray spectra, light-curves and SEDs of blazars frequently observed by Swift
- Magnetic flux inversion in a peculiar changing look AGN
- Magnetorotational core collapse of possible GRB progenitors. IV. A wider range of progenitors
- Interaction of misaligned magnetospheres in the coalescence of binary neutron stars
- Unraveling circular polarimetric images of magnetically arrested accretion flows near event horizon of a black hole
- Test of the Formation mechanism of the Broad Line Region in Active Galactic Nuclei
- Effects of adiabatic index on the sonic surface and time variability of low angular momentum accretion flows
- Microphysics in the gamma ray burst central engine
- General-relativistic treatment of tidal -mode resonances in coalescing binaries of neutron stars. II. As triggers for precursor flares of short gamma-ray bursts
- Kinetically Dominated FRII Radio Sources
- Two steps forward and one step sideways: the propagation of relativistic jets in realistic binary neutron star merger ejecta
- Reconfinement of highly magnetized jets: Implications for HST-1 in M87
- On the diversity of the jet production efficiency in Swift/BAT AGNs
- The very slow rotation of the magnetic O9.7V star HD54879
- Variability of magnetically-dominated jets from accreting black holes
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- Chaotic magnetic disconnections trigger flux eruptions in accretion flows channeled onto magnetically saturated Kerr black holes
- Maximal Jet Energy of Gamma-Ray Bursts through the Blandford-Znajek Mechanism
- Black hole outflows initiated by a large-scale magnetic field
- Global resistive MHD accretion flows around spinning AGNs: impact of resistivity on MAD state
- Exploring Jet Structure and Dynamics in Short Gamma Ray Bursts: A Case Study on GRB 090510
- Charged particle dynamics in magnetosphere generated by current loop around Schwarzschild black hole