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Measurement of the wave-normal vector of proton whistlers on Ogo 6.Description of the first experimental determination of the wave-normal vector of proton whistlers in the ionosphere. Between the crossover frequency and the proton gyrofrequency, both right-hand and left-hand modes of propagation can occur for upgoing waves. Theoretically, the amount of energy in the respective modes depends on theta, the angle between the wave normal and the magnetic field. For proton whistlers with only left-hand mode energy between the crossover and proton gyrofrequency, theta ranged from 36 to 51 deg. For proton whistlers with strong right-hand and left-hand mode signals, theta ranged from 24 to 29 deg. The result is in good agreement with Wang's (1971) collisionless mode-coupling model. The angle between the wave normal and the vertical is found to increase with increasing altitude.
Document ID
19720035482
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chan, K. W.
Burton, R. K.
Holzer, R. E.
(California, University Los Angeles, Calif., United States)
Smith, E. J.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 6, 2013
Publication Date
February 1, 1972
Publication Information
Publication: Journal of Geophysical Research
Volume: 77
Subject Category
Space Radiation
Report/Patent Number
NSSDC-ID-69-051A-22-PM
Accession Number
72A19148
Funding Number(s)
CONTRACT_GRANT: JPL-950403
CONTRACT_GRANT: NGR-05-007-276
Distribution Limits
Public
Copyright
Other

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