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Detailed observations of the source of terrestrial narrowband electromagnetic radiationDetailed observations are presented of a region near the terrestrial plasmapause where narrowband electromagnetic radiation (previously called escaping nonthermal continuum radiation) is being generated. These observations show a direct correspondence between the narrowband radio emissions and electron cyclotron harmonic waves near the upper hybrid resonance frequency. In addition, electromagnetic radiation propagating in the Z-mode is observed in the source region which provides an extremely accurate determination of the electron plasma frequency and, hence, density profile of the source region. The data strongly suggest that electrostatic waves and not Cerenkov radiation are the source of the banded radio emissions and define the coupling which must be described by any viable theory.
Document ID
19830038977
Document Type
Reprint (Version printed in journal)
Authors
Kurth, W. S. (Iowa, University Iowa City, IA, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Geophysical Research Letters
Volume: 9
Subject Category
GEOPHYSICS
Report/Patent Number
AD-A125949
Funding Number(s)
CONTRACT_GRANT: N00014-76-C-0016
CONTRACT_GRANT: NAS5-26819
CONTRACT_GRANT: NGL-16-001-043
Distribution Limits
Public
Copyright
Other