Direct measurement of electron sloshing of an inertial Alfvén wave

J. W.R. Schroeder; F. Skiff; C. A. Kletzing; G. G. Howes; T. A. Carter; S. Dorfman

doi:10.1002/2016GL068865

Direct measurement of electron sloshing of an inertial Alfvén wave

J. W.R. Schroeder, F. Skiff, C. A. Kletzing, G. G. Howes, T. A. Carter, S. Dorfman

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	4701-4707
Number of pages	7
Journal	Geophysical Research Letters
Volume	43
Issue number	10
DOIs	https://doi.org/10.1002/2016GL068865
State	Published - 2016
Externally published	Yes

Keywords

Alfvén waves
auroral phenomena
Large Plasma Device
magnetosphere
wave-particle interactions

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10.1002/2016GL068865

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title = "Direct measurement of electron sloshing of an inertial Alfv{\'e}n wave",

abstract = "We report laboratory measurements of the parallel current carried by suprathermal electrons associated with inertial Alfv{\'e}n 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 Alfv{\'e}n wave propagates along the mean magnetic field. These results identify, for the first time, the periodic motion of suprathermal electrons participating in the inertial Alfv{\'e}n wave itself, in agreement with predictions from linear kinetic theory.",

keywords = "Alfv{\'e}n waves, auroral phenomena, Large Plasma Device, magnetosphere, wave-particle interactions",

author = "Schroeder, {J. W.R.} and F. Skiff and Kletzing, {C. A.} and Howes, {G. G.} and Carter, {T. A.} and S. Dorfman",

year = "2016",

doi = "10.1002/2016GL068865",

language = "English",

volume = "43",

pages = "4701--4707",

journal = "Geophysical Research Letters",

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T1 - Direct measurement of electron sloshing of an inertial Alfvén wave

AU - Schroeder, J. W.R.

AU - Skiff, F.

AU - Kletzing, C. A.

AU - Howes, G. G.

AU - Carter, T. A.

AU - Dorfman, S.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Alfvén waves

KW - auroral phenomena

KW - Large Plasma Device

KW - magnetosphere

KW - wave-particle interactions

UR - http://www.scopus.com/inward/record.url?scp=84969920101&partnerID=8YFLogxK

U2 - 10.1002/2016GL068865

DO - 10.1002/2016GL068865

M3 - Article

AN - SCOPUS:84969920101

SN - 0094-8276

VL - 43

SP - 4701

EP - 4707

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 10

ER -

Direct measurement of electron sloshing of an inertial Alfvén wave

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Keywords

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