Ion harmonic structure in auroral zone waves: The effect of ion conic damping of auroral hiss

Journal Article · Wed Dec 01 04:00:00 EST 1982 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA087iA12p10479· OSTI ID:6149433

Gorney, D J; Church, S R; Mizera, P F

Several low-altitude auroral wave observations exhibiting ion harmonic frequency structure have been reported. We present here recent S3-3 wave and particle data that illustrate examples of ion harmonic structure in auroral hiss and the associated energetic ion distributions. Such harmonic features have previously been attributed to either hot ion absorption or emission processes. We model the observed ion conic distributions to evaluate their effect on auroral hiss near the lower hybrid resonance frequency where harmonic features are seen. The calculations indicate that resonant ion damping of auroral hiss can indeed account for this distinct class of observed harmonic feature. The concomitant heating of the ion tail, however, appears insufficient to significantly energize the ion distribution.

• Research Organization: Space Sciences Laboratory, The Aerospace Corporation, Los Angeles, California 90009
• OSTI ID: 6149433
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 87:A12; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAL HISS
AURORAL ZONES
CHARGED-PARTICLE PRECIPITATION
DAMPING
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRON PRECIPITATION
HARMONICS
ION PLASMA WAVES
ION WAVES
OSCILLATIONS
PLASMA WAVES
RADIATIONS