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Ponderomotive Force in the Presence of Electric FieldsThis paper presents averaged equations of particle motion in an electromagnetic wave of arbitrary frequency with its wave vector directed along the ambient magnetic field. The particle is also subjected to an E cross B drift and a background electric field slowly changing in space and acting along the magnetic field line. The fields, wave amplitude, and the wave vector depend on the coordinate along the magnetic field line. The derivations of the ponderomotive forces are done by assuming that the drift velocity in the ambient magnetic field is comparable to the particle velocity. Such a scenario leads to new ponderomotive forces, dependent on the wave magnetic field intensity, and, as a result, to the additional energy exchange between the wave and the plasma particles. It is found that the parallel electric field can lead to the change of the particle-wave energy exchange rate comparable to that produced by the previously discussed ponderomotive forces.
Document ID
20160005839
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Khazanov, G. V.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Krivorutsky, E. N.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
May 5, 2016
Publication Date
February 21, 2013
Publication Information
Publication: Physics of Plasmas
Publisher: AIP
Volume: 20
Issue: 2
Subject Category
Plasma Physics
Report/Patent Number
GSFC-E-DAA-TN26158
Distribution Limits
Public
Copyright
Other
Keywords
Plasmas
electromagnetic waves
electric fields

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