On the theory of large amplitude Alfven waves

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19740014712.pdf (260.83 KB)

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https://ntrs.nasa.gov/citations/19740014712

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http://hdl.handle.net/11603/30498

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UMBC Goddard Planetary Heliophysics Institute (GPHI)

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https://orcid.org/0000-0002-5317-988X

Date

1974-04-01

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journal articles
preprints
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Citation of Original Publication

Goldstein, M. L., A. J. Klimas, and F. D. Barish. “On the Theory of Large Amplitude Alfven Waves,” April 1, 1974. https://ntrs.nasa.gov/citations/19740014712.

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This is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

Large amplitude Alfvenic disturbances of arbitrary spatial shape and polarization are described by MHD equations, without resort to the usual assumption of planarity. However, because of their nonplanar nature, the direction of propagation of these disturbances cannot, in general, be determined by looking for minima in a variance matrix constructed from observed field fluctuations. When such minima exist, one is observing that subset of interplanetary Alfven waves that is essentially planar.