289 citations · 4.5k across the 121 of their papers we have counts for
14 papers · 1 filter
On the double-adiabatic equations in the relativistic regime
Francisco Ley, Aaron Tran, Ellen G. Zweibel
We revisit the double adiabatic evolution equations and extend them to the relativistic and ultrarelativistic regimes. We analytically solve the relativistic, time-dependent drift…
Drift-cyclotron loss-cone instability in 3D simulations of a sloshing-ion simple mirror
Aaron Tran, Samuel J. Frank, Ari Y. Le +11
The kinetic stability of collisionless, sloshing beam-ion (45° pitch angle) plasma is studied in a 3D simple magnetic mirror, mimicking the Wisconsin High-temperature superconducto…
Nonlinear mode coupling and energetics of driven magnetized shear-flow turbulence
B. Tripathi, A. E. Fraser, P. W. Terry +3
To comprehensively understand saturation of two-dimensional (D) magnetized Kelvin-Helmholtz-instability-driven turbulence, energy transfer analysis is extended from the traditio…
Mechanism for Sequestering Magnetic Energy at Large Scales in Shear-Flow Turbulence
B. Tripathi, A. E. Fraser, P. W. Terry +2
Straining of magnetic fields by large-scale shear flow, generally assumed to lead to intensification and generation of small scales, is re-examined in light of the persistent obser…
Research Opportunities in Plasma Astrophysics
Stuart Bale, Amitava Bhattacharjee, Fausto Cattaneo +13
Major scientific questions and research opportunities are described on 10 unprioritized plasma astrophysics topics: (1) magnetic reconnection, (2) collisionless shocks and particle…
The impact of magnetic fields on momentum transport and saturation of shear-flow instability by stable modes
A. E. Fraser, P. W. Terry, E. G. Zweibel +2
The Kelvin-Helmholtz (KH) instability of a shear layer with an initially-uniform magnetic field in the direction of flow is studied in the framework of 2D incompressible magnetohyd…
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.
[Plasma 2020 Decadal] The Material Properties of Weakly Collisional, High-Beta Plasmas
M. W. Kunz, J. Squire, S. A. Balbus +14
This white paper, submitted for the Plasma 2020 Decadal Survey, concerns the physics of weakly collisional, high-beta plasmas -- plasmas in which the thermal pressure dominates ove…
Transport of high-energy charged particles through spatially-intermittent turbulent magnetic fields
L. E. Chen, A. F. A. Bott, P. Tzeferacos +22
Identifying the sources of the highest energy cosmic rays requires understanding how they are deflected by the stochastic, spatially intermittent intergalactic magnetic field. Here…
Role of stable modes in driven shear-flow turbulence
A. E. Fraser, M. J. Pueschel, P. W. Terry +1
A linearly unstable, sinusoidal shear flow is examined in the gyrokinetic framework in both the linear and nonlinear regimes. In the linear regime, it is shown that th…
The Wisconsin Plasma Astrophysics Laboratory
C. B. Forest, K. Flanagan, M. Brookhart +21
The Wisconsin Plasma Astrophysics Laboratory (WiPAL) is a flexible user facility designed to study a range of astrophysically relevant plasma processes as well as novel geometries…
The Madison plasma dynamo experiment: a facility for studying laboratory plasma astrophysics
C. M. Cooper, J. Wallace, M. Brookhart +13
The Madison plasma dynamo experiment (MPDX) is a novel, versatile, basic plasma research device designed to investigate flow driven magnetohydrodynamic (MHD) instabilities and othe…
Effects of Line-tying on Magnetohydrodynamic Instabilities and Current Sheet Formation
Yi-Min Huang, A. Bhattacharjee, Ellen G. Zweibel
An overview of some recent progress on magnetohydrodynamic stability and current sheet formation in a line-tied system is given. Key results on the linear stability of the ideal in…
Effects of Line-tying on Resistive Tearing Instability in Slab Geometry
Yi-Min Huang, Ellen G. Zweibel
The effects of line-tying on resistive tearing instability in slab geometry is studied within the framework of reduced magnetohydrodynamics (RMHD).\citep{KadomtsevP1974,Strauss1976…