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Coulomb collisions in the solar windA major improvement of the present investigation over previous studies of the subject is related to the use of helium temperatures obtained from helium ion measurements uncontaminated by the high-velocity tail of the proton distribution. More observations, covering a large parameter range, were employed, and the effects of interspecies drift were taken into account. It is shown in a more definite way than has been done previously, that Coulomb collisions provide the most important mechanism bringing about equilibrium between helium and protons in the solar wind. Other mechanisms may play some part in restricted regions, but Coulomb collisions are dominant on the macroscale.
Document ID
19850062276
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Klein, L. W.
(Applied Research Corp. Landover, MD, United States)
Ogilvie, K. W.
(Applied Research Corp. Landover, MD, United States)
Burlaga, L. F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: Journal of Geophysical Research
Volume: 90
ISSN: 0148-0227
Subject Category
Solar Physics
Accession Number
85A44427
Distribution Limits
Public
Copyright
Other

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