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A theory of the terrestrial kilometric radiation
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1979
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During magnetospheric substorms, ~1 keV electrons are injected from the plasma sheet into the auroral region, where some precipitate into the upper atmosphere and others are reflected by the converging geomagnetic field. The study proposes that this reflection process explains the recently discovered terrestrial kilometric radiation. Reflected electrons amplify electromagnetic waves through relativistic normal cyclotron resonance. Published in The Astrophysical Journal, June 1979 (DOI 10.1086/157120).
view Abstract Citations (831) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A theory of the terrestrial kilometric radiation. Wu, C. S. ; Lee, L. C. Abstract During magnetospheric substorms, electrons with energies of about 1 keV are injected from the plasma-sheet region into the auroral region. A fraction of these energetic electrons can precipitate into the upper atmosphere, and the rest are reflected because of the mirror effect of the convergent geomagnetic field. It is found that these reflected electrons can result in the amplification of electromagnetic waves via a relativistic normal cyclotron resonance. This process may explain the recently discovered terrestrial kilometric radiation. Publication: The Astrophysical Journal Pub Date: June 1979 DOI: 10.1086/157120 Bibcode: 1979ApJ...230..621W Keywords: Atmospheric Radiation; Auroral Irradiation; Cyclotron Resonance; Long Wave Radiation; Low Frequencies; Magnetic Mirrors; Upper Atmosphere; Wave Amplification; Auroral Zones; Electromagnetic Radiation; Electron Energy; Electron Precipitation; Geomagnetism; Magnetic Effects; Magnetospheric Electron Density; Magnetospheric Instability; Plasmapause; Geophysics; Earth Magnetosphere:Radio Radiation full text sources ADS |