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Coronal streamers in the solar wind at 1 AUVirtually all solar wind observing groups have reported substantial variations in the solar wind helium-hydrogen abundance ratio (A(He)). A study of Los Alamos Imp solar wind data has revealed an association between low A(He) and high proton density that occurs at low flow speeds and that is correlated with polarity reversals of the interplanetary magnetic field. The current investigation has the objective to present further examples of the low A(He), high proton density, low speed, magnetic field polarity association, and to document the common occurrence of multiple events lasting approximately 3-7 days. The results are presented of attempts to relate these events directly to maps or isophotes of solar coronal brightness at 1.5 solar radii. The results of the investigation suggest that a substantial fraction of the low-speed solar wind originates in coronal streamers, particularly near solar minimum.
Document ID
19810056379
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gosling, J. T.
(Los Alamos Scientific Lab. NM, United States)
Asbridge, J. R.
(Los Alamos Scientific Lab. NM, United States)
Bame, S. J.
(Los Alamos Scientific Lab. NM, United States)
Feldman, W. C.
(California, University Los Alamos Scientific Laboratory, Los Alamos, NM, United States)
Borrini, G.
(Stanford University Stanford, CA, United States)
Hansen, R. T.
(Veterans Administration Medical Center West Haven, CT, United States)
Date Acquired
August 11, 2013
Publication Date
July 1, 1981
Publication Information
Publication: Journal of Geophysical Research
Volume: 86
Subject Category
Solar Physics
Accession Number
81A40783
Funding Number(s)
CONTRACT_GRANT: NSF ATM-80-20421
CONTRACT_GRANT: NGR-05-020-559
CONTRACT_GRANT: N00014-76-C-0207
CONTRACT_GRANT: NAS5-24420
Distribution Limits
Public
Copyright
Other

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