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A model for lower hybrid wave excitation compared with observations by Viking
Author(s) -
Khazanov G. V.,
Liemohn M. W.,
Krivorutsky E. N.,
Horwitz J. L.
Publication year - 1997
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/97gl02389
Subject(s) - lower hybrid oscillation , excitation , plasma , physics , atomic physics , computational physics , cusp (singularity) , ion , magnetosphere , geophysics , satellite , mechanism (biology) , atmospheric sciences , cyclotron , astronomy , mathematics , geometry , quantum mechanics
The mechanism of lower hybrid wave (LHW) excitation due to the O + relative drift in a plasma subjected to low‐frequency waves (LFWs) is used for analysis of Viking satellite data for events in the cusp/cleft region. In some cases, such a mechanism leads to LHW energy densities and ion distribution functions close to those observed, suggesting the proposed mechanism is a plausible candidate to explain certain classes of LHW generation events in space plasmas.