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Wave-particle energy exchange directly observed in a kinetic Alfvén-branch wave

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms14719· OSTI ID:1361175
 [1];  [2];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [8];  [9];  [2];  [10];  [11];  [12];  [12];  [2];  [2];  [13];  [10]
  1. Univ. of Maryland, College Park, MD (United States); Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
  2. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  3. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of Maryland, Baltimore County, MD (United States)
  4. Univ. of Maryland, College Park, MD (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  5. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  6. Imperial College, London (United Kingdom)
  7. Univ. de Toulouse, Toulouse (France); Centre National de la Recherche Scientifique, Toulouse (France)
  8. NASA Marshall Space Flight Center, Huntsville, AL (United States)
  9. JAXA Institute of Space and Astronautical Science, Kanagawa (Japan)
  10. Southwest Research Institute, San Antonio, TX (United States)
  11. Univ. of Colorado, Boulder, CO (United States)
  12. Univ. of California, Los Angeles, CA (United States)
  13. Univ. of New Hampshire, Durham, NH (United States); Southwest Research Institute Durham, Durham, NH (United States)
Alfvén waves are fundamental plasma wave modes that permeate the universe. At small kinetic scales, they provide a critical mechanism for the transfer of energy between electromagnetic fields and charged particles. These waves are important not only in planetary magnetospheres, heliospheres and astrophysical systems but also in laboratory plasma experiments and fusion reactors. Through measurement of charged particles and electromagnetic fields with NASA’s Magnetospheric Multiscale (MMS) mission, we utilize Earth’s magnetosphere as a plasma physics laboratory. Here we confirm the conservative energy exchange between the electromagnetic field fluctuations and the charged particles that comprise an undamped kinetic Alfvén wave. Electrons confined between adjacent wave peaks may have contributed to saturation of damping effects via nonlinear particle trapping. As a result, the investigation of these detailed wave dynamics has been unexplored territory in experimental plasma physics and is only recently enabled by high-resolution MMS observations.
Research Organization:
California Inst. of Technology (CalTech), Pasadena, CA (United States); Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
FG02-04ER54755
OSTI ID:
1361175
Alternate ID(s):
OSTI ID: 1574932
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (29)

Evidence for electron Landau damping in space plasma turbulence journal February 2019
Nonlinear kinetic Alfven waves in space plasmas with generalized ( r , q $r,q$ ) distribution journal September 2018
Collisionless energy transfer in kinetic turbulence: field–particle correlations in Fourier space journal July 2019
Kinetic Alfvén Waves Excited in Two-Dimensional Magnetic Reconnection journal August 2018
Physically Accurate Large Dynamic Range Pseudo Moments for the MMS Fast Plasma Investigation: ACCURATE PSEUDOMOMENTS FOR MMS/FPI journal September 2018
Effects in the Near‐Magnetopause Magnetosheath Elicited by Large‐Amplitude Alfvénic Fluctuations Terminating in a Field and Flow Discontinuity journal November 2018
Laboratory Measurement of Large‐Amplitude Whistler Pulses Generated by Fast Magnetic Reconnection journal July 2019
MMS Measurements of the Vlasov Equation: Probing the Electron Pressure Divergence Within Thin Current Sheets journal July 2019
Theoretical Prediction of Asymmetric Instability of Drift Kinetic Alfven Waves in Anisotropic Plasmas journal June 2019
Kinetic Alfvén Waves From Magnetotail to the Ionosphere in Global Hybrid Simulation Associated With Fast Flows journal February 2020
Energy partitioning constraints at kinetic scales in low- β turbulence journal February 2018
Laboratory space physics: Investigating the physics of space plasmas in the laboratory journal May 2018
Kinetic Alfvén waves generated by ion beam and velocity shear in the Earth's magnetosphere journal February 2019
Generation of kinetic Alfvén waves in dayside magnetopause reconnection: A 3-D global-scale hybrid simulation journal July 2019
On the dispersion and damping of kinetic and inertial Alfvén waves in Cairns distributed plasmas journal June 2019
Resonant instabilities of kinetic Alfvén waves in the Earth's magnetosphere with superthermal electrons journal November 2019
Compressive and rarefactive solitary structures of coupled kinetic Alfven-acoustic waves in non-Maxwellian space plasmas journal September 2019
Alfvenic perturbations with finite Larmor radius effect in non-Maxwellian electron–positron–ion plasmas journal February 2020
Experimental observation of kinetic Alfvén wave generated by magnetic reconnection journal November 2019
Whistler instabilities from the interplay of electron anisotropies in space plasmas: a quasi-linear approach journal December 2019
The Fluid-like and Kinetic Behavior of Kinetic Alfvén Turbulence in Space Plasma journal January 2019
The Interplay of the Solar Wind Core and Suprathermal Electrons: A Quasilinear Approach for Firehose Instability journal February 2019
Dissipation Scale Lengths of Solar Wind Turbulence journal February 2019
Kappa-Maxwellian Electrons and Bi-Maxwellian Protons in a Two-fluid Model for Fast Solar Wind journal September 2019
Identification of Magnetic Flux Ropes from Parker Solar Probe Observations during the First Encounter journal February 2020
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Evidence for Electron Landau Damping in Space Plasma Turbulence text January 2019
Collisionless energy transfer in kinetic turbulence: field-particle correlations in Fourier space text January 2019
Whistler instabilities from the interplay of electron anisotropies in space plasmas: A quasilinear approach text January 2019

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