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Generation mechanism of whistler waves produced by electron beam injection in spaceElectromagnetic particle simulations are used to determine the generation mechanism of the whistler waves observed in connection with the artificial injection of electron beams in the ionosphere. The production of the waves is shown to be closely connected with the beam-plasma interaction, which leads to the formation of a current structure which acts like an antenna and emits the whistler waves in a coherent manner. This process, in contrast to a mechanism involving amplification of radiation by a whistler mode plasma instability within the beam, allows the whistlers to be generated even though the beam width is less than one wavelength.
Document ID
19890062598
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pritchett, P. L.
(California Univ. Los Angeles, CA, United States)
Karimabadi, H.
(California Univ. Los Angeles, CA, United States)
Omidi, N.
(California, University Los Angeles, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Geophysical Research Letters
Volume: 16
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
89A49969
Funding Number(s)
CONTRACT_GRANT: NSF ATM-85-21125
CONTRACT_GRANT: F19628-88-K-0022
CONTRACT_GRANT: F19628-88-K-0011
CONTRACT_GRANT: NAGW-78
Distribution Limits
Public
Copyright
Other

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