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Statistical properties of the interplanetary microscale fluctuationsResults are reported for a statistical study of short-period fluctuations in the interplanetary plasma velocity and magnetic field. The data base used consists of measurements of the interplanetary plasma and magnetic field by Pioneer 6 with a time resolution of 72 sec and by Mariner 5 with a resolution of 5 min. The analysis is conducted to characterize the parent population from which all individual microscale events on these time scales are drawn. The microscale changes are grouped according to their energy densities relative to the energy density of the background magnetic field, and it is found that each grouping exhibits certain statistical properties within the limits of observational uncertainty. It is noted that these statistical properties are purely observational and independent of any physical model which may be used to interpret them. The results are discussed in the context of MHD discontinuity theory for a thermally anisotropic plasma.
Document ID
19760033553
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Belcher, J. W.
(MIT Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
December 1, 1975
Publication Information
Publication: Journal of Geophysical Research
Volume: 80
Subject Category
Astrophysics
Accession Number
76A16519
Funding Number(s)
CONTRACT_GRANT: NGL-22-009-015
Distribution Limits
Public
Copyright
Other

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