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Alfven wave refraction by interplanetary inhomogeneitiesPioneer 6 magnetic data reveals that the propagation direction of Alfven waves in the interplanetary medium is strongly oriented along the ambient field. Magnetic fluctuations of frequencies up to 1/30 sec in the spacecraft frame are shown to satisfy a necessary condition for Alfven wave normal. It appears from this analysis that geometrical hydromagnetics may satisfactorily describe deviation of the wave normal from the background field. The rotational discontinuity is likely also to propagate along the field lines.
Document ID
19730017140
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Daily, W. D. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 7, 2013
Publication Date
May 1, 1973
Subject Category
Space Sciences
Report/Patent Number
NASA-TM-X-62270
Accession Number
73N25867
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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