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Pioneer 9 and Pioneer 10 observations of the solar wind associated with the August 1972 eventsObservations are presented of the changes in the solar wind proton parameters at 0.8 and 2.2 AU as a result of the solar flares in August 1972. These observations were obtained by the NASA Ames Research Center solar wind plasma analyzer experiments on Pioneer 9 and Pioneer 10. High time resolution measurements are presented of the solar wind proton speed associated with the arrival of the interplanetary shocks at Pioneer 9 and Pioneer 10. For these events, differential ion energy per unit charge spectra are shown which indicate the changes in the solar wind ion distribution function associated with the arrival of each of the interplanetary shocks. Four fast shocks are identified at Pioneer 9, and it is found that previously the time of arrival of the first interplanetary shock at Pioneer 9 was not correctly identified. Two fast shocks and one reverse shock are identified at Pioneer 10.
Document ID
19770040364
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Intriligator, D. S.
(Southern California, University Los Angeles, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
February 1, 1977
Publication Information
Publication: Journal of Geophysical Research
Volume: 82
Subject Category
Solar Physics
Accession Number
77A23216
Funding Number(s)
CONTRACT_GRANT: NAS2-7969
CONTRACT_GRANT: NGR-05-018-181
Distribution Limits
Public
Copyright
Other

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