DocumentCode
1002096
Title
Parametric interactions between Alfven waves and sonic waves
Author
Elachi, Charles
Author_Institution
California Institute of Technology, Pasadena, CA, USA
Volume
21
Issue
6
fYear
1973
fDate
11/1/1973 12:00:00 AM
Firstpage
907
Lastpage
909
Abstract
Parametric interactions between a sonic pump wave and a weak Alfven wave are studied. It is shown that if the Alfven-wave velocity 
is small relative to the sonic-wave velocity 
there is a time-growing instability leading to the increase of the Alfven wave at the expense of the sonic wave. This phenomenon can be of importance in solar and stellar physics. For large relative to , the interaction is of the stop-band type.
is small relative to the sonic-wave velocity there is a time-growing instability leading to the increase of the Alfven wave at the expense of the sonic wave. This phenomenon can be of importance in solar and stellar physics. For large relative to , the interaction is of the stop-band type.Keywords
Electromagnetic propagation in nonhomogeneous media; Electromagnetic propagation in plasma media; MHD; Earth; Electromagnetic radiation; Equations; Geometry; Impedance measurement; Insulation; Magnetosphere; Physics; Q measurement; Wire;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1973.1140625
Filename
1140625
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