Three-dimensional ray tracing of electrostatic cyclotron harmonic waves and Z mode electromagnetic waves in the magnetosphere

Journal Article · Sat Aug 01 04:00:00 EDT 1987 · Radio Sci.; (United States)

DOI:https://doi.org/10.1029/RS022i004p00579· OSTI ID:5869360

Hashimoto, K; Yamaashi, K; Kimura, I

Three-dimensional ray tracing is performed for electrostatic electron cyclotron harmonic waves and Z mode electromagnetic waves in the earth's magnetosphere using the hot dispersion relation. Propagation characteristics of cyclotron harmonic waves under the electrostatic approximation are considered, and it is noted that waves starting near the equator can propagate over a long distance without damping. Ray tracing without the electrostatic approximation confirms mode conversion from cyclotron harmonic waves to Z mode electromagnetic waves, and the conditions for the conversion are clarified. It is suggested that further conversion to the L-O mode continuum radiation is possible under strict constraints. The present results are not inconsistent with the conversion mechanism for the generation of escaping continuum radiation in the magnetosphere. 20 references.

• Research Organization: Tokyo Univ. of Electrical Engineering, Japan; Kyoto Univ., Japan
• OSTI ID: 5869360
• Journal Information: Radio Sci.; (United States), Journal Name: Radio Sci.; (United States) Vol. 22; ISSN RASCA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATORS
CYCLIC ACCELERATORS
CYCLOTRONS
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ELECTROMAGNETIC RADIATION
FUNCTIONS
LANGMUIR FREQUENCY
PLASMA WAVES
RADIATIONS
WAVE FUNCTIONS
WAVE PROPAGATION