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Transverse ion acceleration by localized lower hybrid waves in the topside auroral ionosphereUp to now, observations had been unable to show conclusively a one-to-one correspondence between perpendicular ion acceleration and a particular type of plasma wave within the O(+) source region below 2000 km. In this paper we demonstrate that intense (100-300 mV/m) lower hybrid waves are responsible for transversely accelerating H(+) and O(+) ions to characteristic energies of up to 6 eV. This wave-particle interaction takes place in thin filamentary density cavities oriented along geomagnetic field lines. The measurements we discuss were conducted in the nightside auroral zone at latitudes between 500 km and 1100 km. Our results are consistent with theories of lower hybrid wave condensation and collapse.
Document ID
19930032345
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Vago, J. L.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Kintner, P. M.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Chesney, S. W.
(Cornell Univ. Ithaca, NY, United States)
Arnoldy, R. L.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Lynch, K. A.
(New Hampshire Univ. Durham, United States)
Moore, T. E.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Pollock, C. J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
Issue: A11
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
93A16342
Funding Number(s)
CONTRACT_GRANT: N00014-90-C-0003
CONTRACT_GRANT: NAG6-12
PROJECT: RTOP 435-11-00-19
CONTRACT_GRANT: NAG5-601
Distribution Limits
Public
Copyright
Other

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