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Title: Electron and ion heating by whistler turbulence: Three-dimensional particle-in-cell simulations

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1002/2014GL062070· OSTI ID:1159568
 [1];  [2];  [1]
  1. Univ. of Southern California, Los Angeles, CA (United States)
  2. Space Science Institute, Boulder, CO (United States)

Three-dimensional particle-in-cell simulations of decaying whistler turbulence are carried out on a collisionless, homogeneous, magnetized, electron-ion plasma model. In addition, the simulations use an initial ensemble of relatively long wavelength whistler modes with a broad range of initial propagation directions with an initial electron beta βe = 0.05. The computations follow the temporal evolution of the fluctuations as they cascade into broadband turbulent spectra at shorter wavelengths. Three simulations correspond to successively larger simulation boxes and successively longer wavelengths of the initial fluctuations. The computations confirm previous results showing electron heating is preferentially parallel to the background magnetic field Bo, and ion heating is preferentially perpendicular to Bo. The new results here are that larger simulation boxes and longer initial whistler wavelengths yield weaker overall dissipation, consistent with linear dispersion theory predictions of decreased damping, stronger ion heating, consistent with a stronger ion Landau resonance, and weaker electron heating.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1159568
Report Number(s):
LA-UR-14-27991; TRN: US1600632
Journal Information:
Geophysical Research Letters, Vol. 41, Issue 24; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

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Cited By (8)

Large-Eddy Simulations of Magnetohydrodynamic Turbulence in Heliophysics and Astrophysics journal July 2015
Statistical Study of the Properties of Magnetosheath Lion Roars journal July 2018
Magnetosonic/whistler mode turbulence influences on ion dynamics journal December 2018
Ultrafast wave-particle energy transfer in the collapse of standing whistler waves journal November 2019
Species Entropies in the Kinetic Range of Collisionless Plasma Turbulence: Particle-in-cell Simulations journal May 2018
Dependence of Kinetic Plasma Turbulence on Plasma β journal August 2018
Parallel Electron Heating by Tangential Discontinuity in the Turbulent Magnetosheath journal May 2019
Large-Eddy Simulations of Magnetohydrodynamic Turbulence in Heliophysics and Astrophysics text January 2015