67 citations · 364 across the 26 of their papers we have counts for
26 papers
The FLARE Facility
Hantao Ji, Jongsoo Yoo, Peiyun Shi +53
The Facility for Laboratory Reconnection Experiments (FLARE) has been constructed to study magnetic reconnection in multiple X-line regimes relevant to space, astrophysical, and fu…
Particle acceleration by magnetic reconnection in geospace
Mitsuo Oka, Joachim Birn, Jan Egedal +7
Particles are accelerated to very high, non-thermal energies during explosive energy-release phenomena in space, solar, and astrophysical plasma environments. While it has been est…
Laboratory Study of Collisionless Magnetic Reconnection
H. Ji, J. Yoo, W. Fox +13
A concise review is given on the past two decades' results from laboratory experiments on collisionless magnetic reconnection in direct relation with space measurements, especially…
The Force Balance of Electrons During Kinetic Anti-parallel Magnetic Reconnection
J. Egedal, H. Gurram, S. Greess +2
Fully kinetic simulations are applied to the study of 2D anti-parallel reconnection, elucidating the dynamics by which the electron fluid maintains force balance within both the el…
Kinetic Simulations Verifying Reconnection Rates Measured in the Laboratory, Spanning the Ion-Coupled to Near Electron-Only Regimes
Samuel Greess, Jan Egedal, Adam Stanier +6
The rate of reconnection characterizes how quickly flux and mass can move into and out of the reconnection region. In the Terrestrial Reconnection EXperiment (TREX), the rate at wh…
2D reconstruction of magnetotail electron diffusion region measured by MMS
J. M. Schroeder, J. Egedal, G. Cozzani +4
Models for collisionless magnetic reconnection in near-Earth space are distinctly characterized as 2D or 3D. In 2D kinetic models, the frozen-in law for the electron fluid is usual…
Pitch Angle Scattering of Fast Particles by Low Frequency Magnetic Fluctuations
Yi Xu, Jan Egedal
The adiabatic invariance of the magnetic moment during particle motion is of fundamental importance to the dynamics of magnetized plasma. The related rate of pitch angle scattering…
Laboratory verification of electron-scale reconnection regions modulated by a three-dimensional instability
S. Greess, J. Egedal, A. Stanier +9
During magnetic reconnection in collisionless space plasma, the electron fluid decouples from the magnetic field within narrow current layers, and theoretical models for this proce…
A drift kinetic model for the expander region of a magnetic mirror
Blake A. Wetherton, Ari Le, Jan Egedal +4
We present a drift kinetic model for the free expansion of a thermal plasma out of a magnetic nozzle. This problem relates to plasma space propulsion systems, natural environments…
Regulation of the Normalized Rate of Driven Magnetic Reconnection through Shocked Flux Pileup
J. Olson, J. Egedal, M. Clark +7
Magnetic reconnection is explored on the Terrestrial Reconnection Experiment (TREX) for asymmetric inflow conditions and in a configuration where the absolute rate of reconnection…
Laminar and Turbulent Plasmoid Ejection in a Laboratory Parker Spiral Current Sheet
Ethan E. Peterson, Douglass A. Endrizzi, Michael Clark +8
Quasi-periodic plasmoid formation at the tip of magnetic streamer structures is observed to occur in experiments on the Big Red Ball as well as in simulations of these experiments…
Ion heating and flow driven by an Instability found in Plasma Couette Flow
J. Milhone, K. Flanagan, J. Egedal +5
We present the first observation of instability in weakly magnetized, pressure dominated plasma Couette flow firmly in the Hall regime. Strong Hall currents couple to a low frequen…
The structure of a perturbed magnetic reconnection electron diffusion region
G. Cozzani, Yu. V. Khotyaintsev, D. B. Graham +9
We report in situ observations of an electron diffusion region (EDR) and adjacent separatrix region. We observe significant magnetic field oscillations near the lower hybrid freque…
Parallel Velocity Mixing Yielding Enhanced Electron Heating During Magnetic Pumping
J. Egedal, J. Schroeder, E. Lichko
Magnetic wave perturbations are observed in the solar wind and in the vicinity of Earth's bow shock. For such environments, recent work on magnetic pumping with electrons trapped i…
Major Scientific Challenges and Opportunities in Understanding Magnetic Reconnection and Related Explosive Phenomena in Solar and Heliospheric Plasmas
H. Ji, J. Karpen, A. Alt +105
Magnetic reconnection underlies many explosive phenomena in the heliosphere and in laboratory plasmas. The new research capabilities in theory/simulations, observations, and labora…
Weakly magnetized, Hall dominated plasma Couette flow
K. Flanagan, J. Milhone, J. Egedal +5
A novel plasma equilibrium in the high-, Hall regime that produces centrally-peaked, high Mach number Couette flow is described. Flow is driven using a weak, uniform magnetic fi…
Mode Converting Alfvén Waves from Magnetic Reconnection Enhancing the Energy Source for the Aurora Borealis
Harsha Gurram, Jan Egedal, William Daughton
Previous studies have concluded that the Hall magnetic field structures generated during magnetic reconnection are carried away by kinetic Alfvén waves (KAW). Here we apply a kinet…
Major Scientific Challenges and Opportunities in Understanding Magnetic Reconnection and Related Explosive Phenomena throughout the Universe
H. Ji, A. Alt, S. Antiochos +97
This white paper summarizes major scientific challenges and opportunities in understanding magnetic reconnection and related explosive phenomena as a fundamental plasma process.
A drift-kinetic method for obtaining gradients in plasma properties from single-point distribution function data
Blake A. Wetherton, Jan Egedal, Peter K. Montag +2
In this paper, we derive a new drift-kinetic method for estimating gradients in the plasma properties through a velocity space distribution at a single point. The gradients are int…
On the temperature of the solar wind
Stanislav Boldyrev, Cary Forest, Jan Egedal
Solar wind provides an example of a weakly collisional plasma expanding from a thermal source in the presence of spatially diverging magnetic field lines. Observations show that in…
Three-Dimensional Stability of Current Sheets Supported by Electron Pressure Anisotropy
Ari Le, Adam Stanier, Bill Daughton +4
The stability of electron current sheets embedded within the reconnection exhaust is studied with a 3D fully kinetic particle-in-cell simulation. The electron current layers studie…
Magnetic pumping as a source of particle heating and power-law distributions in the solar wind
E. Lichko, J. Egedal, W. Daughton +1
Based on the rate of expansion of the solar wind, the plasma should cool rapidly as a function of distance to the Sun. Observations show this is not the case. In this work, a magne…
Electron crescent distributions as a manifestation of diamagnetic drift in an electron scale current sheet
A. C. Rager, J. C. Dorelli, D. J. Gershman +16
We report Magnetospheric Multiscale observations of electron pressure gradient electric fields near a magnetic reconnection diffusion region using a new technique for extracting 7.…
Two-Stage Bulk Electron Heating in the Diffusion Region of Anti-Parallel Symmetric Reconnection
Ari Le, Jan Egedal, William Daughton
Electron bulk energization in the diffusion region during anti-parallel symmetric reconnection entails two stages. First, the inflowing electrons are adiabatically trapped and ener…