Identification of active magnetic reconnection using magnetic flux transport in plasma turbulence
arXiv:2112.14878 · doi:10.3847/2041-8213/abea0b
Abstract
Magnetic reconnection has been suggested to play an important role in the dynamics and energetics of plasma turbulence by spacecraft observations, simulations and theory over the past two decades, and recently, by magnetosheath observations of MMS. A new method based on magnetic flux transport (MFT) has been developed to identify reconnection activity in turbulent plasmas. This method is applied to a gyrokinetic simulation of two-dimensional (2D) plasma turbulence. Results on the identification of three active reconnection X-points are reported. The first two X-points have developed bi-directional electron outflow jets. Beyond the category of electron-only reconnection, the third X-point does not have bi-directional electron outflow jets because the flow is modified by turbulence. In all cases, this method successfully identifies active reconnection through clear inward and outward flux transport around the X-points. This transport pattern defines reconnection and produces a new quadrupolar structure in the divergence of MFT. This method is expected to be applicable to spacecraft missions such as MMS, Parker Solar Probe, and Solar Orbiter.
arXiv comment9 pages, 5 figures, 1 animation
References in corpus (43)
- Astrophysical gyrokinetics: kinetic and fluid turbulent cascades in magnetized weakly collisional plasmas
- Universality of solar wind turbulent spectrum from MHD to electron scales
- Astrophysical Gyrokinetics: Basic Equations and Linear Theory
- Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas
- New Measure of the Dissipation Region in Collisionless Magnetic Reconnection
- Gyrokinetic Simulations of Solar Wind Turbulence from Ion to Electron Scales
- Recent progress in astrophysical plasma turbulence from solar wind observations
- The Anisotropy of Electron MHD Turbulence
- Statistical Analysis of Current Sheets in Three-Dimensional Magnetohydrodynamic Turbulence
- Scaling of the electron dissipation range of solar wind turbulence
- Intermittent Dissipation and Local Heating in the Solar Wind
- Current Sheets and Collisionless Damping in Kinetic Plasma Turbulence
- Nature of Kinetic Scale Turbulence in the Earth's Magnetosheath
- Magnetic reconnection as a driver for a sub-ion scale cascade in plasma turbulence
- Linearized model Fokker-Planck collision operators for gyrokinetic simulations. I. Theory
- Nonlinear phase mixing and phase-space cascade of entropy in gyrokinetic plasma turbulence
- Kinetic dissipation and anisotropic heating in a turbulent collisionless plasma
- Role of magnetic reconnection in MHD turbulence
- Spectra and anisotropy of magnetic fluctuations in the Earth's magnetosheath: Cluster observations
- Electron scale structures and magnetic reconnection signatures in the turbulent magnetosheath
- Disruption of sheetlike structures in Alfvénic turbulence by magnetic reconnection
- Linearized model Fokker-Planck collision operators for gyrokinetic simulations. II. Numerical implementation and tests
- Collisionless Reconnection in Magnetohydrodynamic and Kinetic Turbulence
- Small scale structures in three-dimensional magnetohydrodynamic turbulence
- Disruption of Alfvénic turbulence by magnetic reconnection in a collisionless plasma
- Magnetohydrodynamic turbulence mediated by reconnection
- AstroGK: Astrophysical Gyrokinetics Code
- Evidence of Critical Balance in Kinetic Alfven Wave Turbulence Simulations
- Magnetic Reconnection May Control the Ion-Scale Spectral Break of Solar Wind Turbulence
- Spatially Localized Particle Energization by Landau Damping in Current Sheets Produced by Strong Alfven Wave Collisions
- Ion and electron heating during magnetic reconnection in weakly collisional plasmas
- The Dynamical Generation of Current Sheets in Astrophysical Plasma Turbulence
- Exploring the Statistics of Magnetic Reconnection X-points in Kinetic Particle-in-Cell (PIC) Turbulence
- 3D Magnetic Reconnection with a spatially confined X-line extent -- Implications for Dipolarizing Flux Bundles and the Dawn-Dusk Asymmetry
- Collisionless Reconnection in the Large Guide Field Regime: Gyrokinetic Versus Particle-in-Cell Simulations
- Energy Dissipation and Landau Damping in Two- and Three-Dimensional Plasma Turbulence
- Alfven Wave Collisions, The Fundamental Building Block of Plasma Turbulence II: Numerical Solution
- Gyrokinetic simulations of the tearing instability
- Collisionless energy transfer in kinetic turbulence: field-particle correlations in Fourier space
- Suppression of collisionless magnetic reconnection in asymmetric current sheets
- Strongly localized magnetic reconnection by the super-Alfvenic shear flow
- Three-Dimensional X-line Spreading in Asymmetric Magnetic Reconnection
- Scaling of magnetic reconnection with a limited x-line extent
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- Extended magnetic reconnection in kinetic plasma turbulence
- A Method for Determining the Locations and Configurations of Magnetic Reconnection within 3D Turbulent Plasmas
- Conditions for Relativistic Magnetic Reconnection under the Presence of Shear Flow and Guide Field
- Local extraction of three-dimensional magnetic reconnection X-lines