Implications from the velocity profile of the M87 jet: a possibility of a slowly rotating black hole magnetosphere
arXiv:2209.07264 · doi:10.3847/1538-4357/ac8c2f
Abstract
Motivated by the measured velocity profile of the M87 jet using the KVN and VERA Array (KaVA) by Park et al. indicating that the starting position of the jet acceleration is farther from the central engine of the jet than predicted in general relativistic magnetohydrodynamic simulations, we explore how to mitigate the apparent discrepancy between the simulations and the KaVA observation. We use a semi-analytic jet model proposed by Tomimatsu and Takahashi. consistently solving the trans-magnetic field structure but neglecting any dissipation effects. By comparing the jet model with the observed M87 jet velocity profile, we find that the model can reproduce the logarithmic feature of the velocity profile, and can fit the observed data when choosing where is the gravitational radius. While a total specific energy () of the jet changes the terminal bulk Lorentz factor of the jet, a slower angular velocity of the black hole magnetosphere (funnel region) () makes a light-cylinder radius () larger and it consequently pushes out a location of a starting point of the jet acceleration. Using the estimated we further estimate the magnetic field strength on the event horizon scale in M87 by assuming Blandford-Znajek (BZ) process is in action. The corresponding magnetic flux threading the event horizon of M87 is in good agreement with a magnetically arrested disc (MAD) regime.
arXiv comment27 pages, 10 figures; accepted for publication in ApJ
References in corpus (84)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
- First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
- First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
- Efficient Generation of Jets from Magnetically Arrested Accretion on a Rapidly Spinning Black Hole
- First M87 Event Horizon Telescope Results. II. Array and Instrumentation
- First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
- Relativistic Jets in Active Galactic Nuclei
- Magnetically Arrested Disk: An Energetically Efficient Accretion Flow
- First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon
- General Relativistic Magnetohydrodynamic Simulations of Jet Formation and Large-Scale Propagation from Black Hole Accretion Systems
- Black Hole Spin and the Radio Loud/Quiet Dichotomy of Active Galactic Nuclei
- Three-dimensional MHD Simulations of Radiatively Inefficient Accretion Flows
- Radio-Loudness of Active Galactic Nuclei: Observational Facts and Theoretical Implications
- GRMHD Simulations of Magnetized Advection Dominated Accretion on a Non-Spinning Black Hole: Role of Outflows
- M87 at 90cm: A Different Picture
- Magnetic acceleration of relativistic AGN jets
- The Structure and Dynamics of the Sub-parsec Scale Jet in M87 Based on 50 VLBA Observations Over 17 Years at 43 GHz
- The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project
- Magnetically Driven Jets in the Kerr Metric
- General relativistic magnetohydrodynamical simulations of the jet in M87
- The Structure of the M87 Jet: A Transition from Parabolic to Conical Streamlines
- Black hole flares: ejection of accreted magnetic flux through 3D plasmoid-mediated reconnection
- Simulations of Ultrarelativistic Magnetodynamic Jets from Gamma-ray Burst Engines
- Electrodynamics of black hole magnetospheres
- Magnetic Reconnection and Hot Spot Formation in Black Hole Accretion Disks
- Kinematics of the jet in M87 on scales of 100 -- 1000 Schwarzschild radii
- The matter content of the jet in M87: evidence for an electron-positron jet
- The Inner Jet of the Radio Galaxy M87
- Asymptotic structure of Poynting dominated jets
- First-Principles Plasma Simulations of Black-Hole Jet Launching
- The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87
- High-Sensitivity 86GHz (3.5mm) VLBI Observations of M87: Deep Imaging of the Jet Base at a 10 Schwarzschild-Radius Resolution
- Parabolic Jets from the Spinning Black Hole in M87
- Dynamics and High Energy Emission of the Flaring HST-1 Knot in the M 87 Jet
- The size of the jet launching region in M87
- Innermost collimation structure of the M87 jet down to ~ten Schwarzschild radii
- Variable TeV emission as a manifestation of jet formation in M87?
- Accelerating AGN jets to parsec scales using general relativistic MHD simulations
- M87 at metre wavelengths: the LOFAR picture
- Ab Initio Horizon-Scale Simulations of Magnetically Arrested Accretion in Sagittarius A* Fed by Stellar Winds
- Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign
- General Relativistic Magnetohydrodynamic Simulations of Blandford-Znajek Jets and the Membrane Paradigm
- Discovery of Sub- to Superluminal Motions in the M87 Jet: An Implication of the Acceleration from Sub-relativistic to Relativistic Speeds
- Pair Production in Low Luminosity Galactic Nuclei
- Reconnection-driven particle acceleration in relativistic shear flows
- Energetic Gamma Radiation from Rapidly Rotating Black Holes
- Faraday rotation in the jet of M87 inside the Bondi radius: indication of winds from hot accretion flows confining the relativistic jet
- Black Hole Magnetospheres
- Formation of Overheated Regions and Truncated Disks around Black Holes; Three-dimensional General Relativistic Radiation-magnetohydrodynamics Simulations
- General relativistic resistive magnetohydrodynamics with robust primitive variable recovery for accretion disk simulations
- The Surprisingly Small Impact of Magnetic Fields On The Inner Accretion Flow of Sagittarius A* Fueled By Stellar Winds
- Particle-in-cell simulations of pair discharges in a starved magnetosphere of a Kerr black hole
- Kinematics of the M87 jet in the collimation zone: gradual acceleration and velocity stratification
- Studies of the Jet in BL Lacertae I. Recollimation Shock and Moving Emission Features
- Magnetization degree at the jet base of M87 derived from the event horizon telescope data: Testing magnetically driven jet paradigm
- The kinematic of HST-1 in the jet of M87
- Pilot KaVA monitoring on the M87 jet: confirming the inner jet structure and superluminal motions at sub-pc scales
- A strong radio brightening at the jet base of M87 during the elevated very-high-energy gamma-ray state in 2012
- Monitoring of the radio galaxy M87 during a low emission state from 2012 to 2015 with MAGIC
- Relativistic electrons and magnetic field of the M87 jet on ~ten Schwarzschild radii scale
- Steady General Relativistic Magnetohydrodynamic Inflow/Outflow Solution along Large-Scale Magnetic Fields that Thread a Rotating Black Hole
- VLBI observations of bright AGN jets with KVN and VERA Array (KaVA): Evaluation of Imaging Capability
- Existence of steady gap solutions in rotating black hole magnetospheres
- Electromotive Force in the Blandford-Znajek Process
- Fast-spinning black holes inferred from symmetrically limb-brightened radio jets
- Physics of Pair Producing Gaps in Black Hole Magnetospheres
- Comprehensive analysis of magnetospheric gaps around Kerr black holes using 1D GRPIC simulations
- Capabilities and prospects of the East Asia Very Long Baseline Interferometry Network
- Pair Drizzle around Sub-Eddington Supermassive Black Holes
- Relativistic Acceleration of Magnetically Driven Jets
- Black Hole Spin Signature in the Black Hole Shadow of M87 in the Flaring State
- Properties of Trans-fast Magnetosonic Jets in Black Hole Magnetospheres
- Baryon Loading of AGN Jets Mediated by Neutrons
- Can the BZ mechanism power steady jets?
- Long-term millimeter VLBI monitoring of M87 with KVN at milliarcsecond resolution: nuclear spectrum
- An oversized magnetic sheath wrapping around the parsec-scale jet in 3C 273
- The effect of Compton drag on the dynamics of dissipative Poynting dominated flows: Implications for the unification of radio loud AGN
- Gap-type Particle Acceleration in the Magnetospheres of Rotating Supermassive Black Holes
- Very High-Energy Emission from the Direct Vicinity of Rapidly Rotating Black Holes
- Toward a Full MHD Jet Model of Spinning Black Holes--II: Kinematics and Application to the M87 Jet
- Constraints on the Evolution of Black Hole Spin due to Magnetohydrodynamic Accretion
- Matter density distribution of general relativistic highly magnetized jets driven by black holes
- Effects of Inner Alfvén Surface Location on Black Hole Energy Extraction in the Limit of a Force-Free Magnetosphere
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- Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
- Spectral analysis of a parsec-scale jet in M87: Observational constraint on the magnetic field strengths in the jet
- M87: a cosmic laboratory for deciphering black hole accretion and jet formation
- Signatures of Black Hole Spin and Plasma Acceleration in Jet Polarimetry
- Discovery of Limb Brightening in the Parsec-scale Jet of NGC 315 through Global Very Long Baseline Interferometry Observations and Its Implications for Jet Models
- Synchrotron intensity plots from a relativistic stratified jet
- On the M87 jet structure near the central engine
- The Accretion Properties and Jet Mechanisms for the Low-Excitation Radio Galaxies
- On the possible core shift break in relativistic jets
- Kilogauss magnetic field and jet dynamics in the quasar NRAO 530
- Jet MHD analytical model - framework for radiative transfer