First-principles measurement of ion and electron energization in collisionless accretion flow
arXiv:2410.02872 · doi:10.3847/2041-8213/adbca4
Abstract
We present the largest 3D Particle-in-Cell shearing-box simulations of turbulence driven by the magnetorotational instability, for the first time employing the realistic proton-to-electron mass ratio. We investigate the energy partition between relativistically hot electrons and subrelativistic ions in turbulent accretion flows, a regime relevant to collisionless, radiatively inefficient accretion flows of supermassive black holes, such as those targeted by the Event Horizon Telescope. We provide a simple empirical formula to describe the measured heating ratio between ions and electrons, which can be used for more accurate global modeling of accretion flows with standard fluid approaches such as general-relativistic magnetohydrodynamics.
arXiv commentAccepted in ApJL
References in corpus (55)
- Advection-Dominated Accretion: A Self-Similar Solution
- Advection-Dominated Accretion: Underfed Black Holes and Neutron Stars
- Hot Accretion Flows Around Black Holes
- First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
- Advection-Dominated Accretion: Self-Similarity and Bipolar Outflows
- A Measurement of the Electromagnetic Luminosity of a Kerr Black Hole
- First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole
- Black Hole Spin and the Radio Loud/Quiet Dichotomy of Active Galactic Nuclei
- GRMHD Simulations of Magnetized Advection Dominated Accretion on a Non-Spinning Black Hole: Role of Outflows
- Global General Relativistic MHD Simulation of a Tilted Black-Hole Accretion Disk
- General relativistic magnetohydrodynamical simulations of the jet in M87
- Radiative Models of Sgr A* from GRMHD Simulations
- Angular Momentum Transport by MHD Turbulence in Accretion Disks: Gas Pressure Dependence of the Saturation Level of the Magnetorotational Instability
- Interacting Supernovae and Supernova Impostors. SN 2009ip, is this the end?
- Simulations of particle acceleration beyond the classical synchrotron burnoff limit in magnetic reconnection: An explanation of the Crab flares
- Black hole flares: ejection of accreted magnetic flux through 3D plasmoid-mediated reconnection
- Magnetic Reconnection and Hot Spot Formation in Black Hole Accretion Disks
- Firehose and Mirror Instabilities in a Collisionless Shearing Plasma
- Particle Acceleration in Relativistic Plasma Turbulence
- Particle Heating by Alfvenic Turbulence in Hot Accretion Flows
- Electron Heating in Hot Accretion Flows
- Non-thermal particle acceleration in collisionless relativistic electron-proton reconnection
- Shearing Box Simulations of the MRI in a Collisionless Plasma
- Modeling high-energy pulsar lightcurves from first principles
- The interplay of magnetically-dominated turbulence and magnetic reconnection in producing nonthermal particles
- A prescription for the turbulent heating of astrophysical plasmas
- Implementation of the Shearing Box Approximation in Athena
- Kinetic turbulence in relativistic plasma: from thermal bath to non-thermal continuum
- The role of electron heating physics in images and variability of the Galactic Centre black hole Sagittarius A*
- Thermal disequilibration of ions and electrons by collisionless plasma turbulence
- Flares in the Galactic center I: orbiting flux tubes in Magnetically Arrested Black Hole Accretion Disks
- Magnetic flux captured by an accretion disk
- Are Particles in Advection-Dominated Accretion Flows Thermal?
- Electron and ion energization in relativistic plasma turbulence
- Magnetorotational Turbulence and Dynamo in a Collisionless Plasma
- Faraday rotation in GRMHD simulations of the jet launching zone of M87
- Radiatively Inefficient Accretion Flow Models of Sgr A*
- General relativistic resistive magnetohydrodynamics with robust primitive variable recovery for accretion disk simulations
- Local 2D Particle-in-cell simulations of the collisionless MRI
- On the Saturation of the Magnetorotational Instability via Parasitic Modes
- A parameter survey of Sgr A* radiative models from GRMHD simulations with self-consistent electron heating
- Particle Acceleration during Magnetorotational Instability in a Collisionless Accretion Disk
- System-size convergence of nonthermal particle acceleration in relativistic plasma turbulence
- Angular Momentum Transport and Particle Acceleration during Magnetorotational Instability in a Kinetic Accretion Disk
- Astrophysical gyrokinetics: Turbulence in pressure-anisotropic plasmas at ion scales and beyond
- Pitch Angle Anisotropy Controls Particle Acceleration and Cooling in Radiative Relativistic Plasma Turbulence
- On the Nature of Magnetic Turbulence in Rotating, Shearing Flows
- Particle energization in relativistic plasma turbulence: solenoidal versus compressive driving
- Ion versus electron heating in compressively driven astrophysical gyrokinetic turbulence
- Fully kinetic large scale simulations of the collisionless Magnetorotational instability
- Impact of magneto-rotational instability on grain growth in protoplanetary disks: I. Relevant turbulence properties
- The Super-Alfvénic Rotational Instability in accretion disks about black holes
- Energy partition between Alfvénic and compressive fluctuations in magnetorotational turbulence with near-azimuthal mean magnetic field
- Inertial range of magnetorotational turbulence
- Parametric Survey of Nonaxisymmetric Accretion Disk Instabilities: Magnetorotational Instability to Super-Alfvénic Rotational Instability