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
Link To Document :
