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Title: Direct measurement of electron sloshing of an inertial Alfvén wave

Abstract

Here, we report laboratory measurements of the parallel current carried by suprathermal electrons associated with inertial Alfvén wave excitation in the laboratory. The experiments presented here use a novel wave absorption diagnostic that measures the suprathermal tails of the electron distribution parallel to the mean magnetic field. The diagnostic is used to probe the electron distribution as an inertial Alfvén wave propagates along the mean magnetic field. These results identify, for the first time, the periodic motion of suprathermal electrons participating in the inertial Alfvén wave itself, in agreement with predictions from linear kinetic theory.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2]
  1. Univ. of Iowa, Iowa City, IA (United States)
  2. Univ. of California, Los Angeles, CA (United States)
Publication Date:
Research Org.:
Univ. of Iowa, Iowa City, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1469192
Alternate Identifier(s):
OSTI ID: 1402277
Grant/Contract Number:  
FG02-06ER54890
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 43; Journal Issue: 10; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Alfvén waves; wave‐particle interactions; auroral phenomena; Large Plasma Device; magnetosphere

Citation Formats

Schroeder, James W. R., Skiff, F., Kletzing, C. A., Howes, G. G., Carter, T. A., and Dorfman, S. Direct measurement of electron sloshing of an inertial Alfvén wave. United States: N. p., 2016. Web. doi:10.1002/2016GL068865.
Schroeder, James W. R., Skiff, F., Kletzing, C. A., Howes, G. G., Carter, T. A., & Dorfman, S. Direct measurement of electron sloshing of an inertial Alfvén wave. United States. doi:10.1002/2016GL068865.
Schroeder, James W. R., Skiff, F., Kletzing, C. A., Howes, G. G., Carter, T. A., and Dorfman, S. Thu . "Direct measurement of electron sloshing of an inertial Alfvén wave". United States. doi:10.1002/2016GL068865. https://www.osti.gov/servlets/purl/1469192.
@article{osti_1469192,
title = {Direct measurement of electron sloshing of an inertial Alfvén wave},
author = {Schroeder, James W. R. and Skiff, F. and Kletzing, C. A. and Howes, G. G. and Carter, T. A. and Dorfman, S.},
abstractNote = {Here, we report laboratory measurements of the parallel current carried by suprathermal electrons associated with inertial Alfvén wave excitation in the laboratory. The experiments presented here use a novel wave absorption diagnostic that measures the suprathermal tails of the electron distribution parallel to the mean magnetic field. The diagnostic is used to probe the electron distribution as an inertial Alfvén wave propagates along the mean magnetic field. These results identify, for the first time, the periodic motion of suprathermal electrons participating in the inertial Alfvén wave itself, in agreement with predictions from linear kinetic theory.},
doi = {10.1002/2016GL068865},
journal = {Geophysical Research Letters},
number = 10,
volume = 43,
place = {United States},
year = {2016},
month = {4}
}

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Cited by: 4 works
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