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Solar-wind and interplanetary electron measurements on the Apollo 15 subsatellite.Measurements of high-energy solar-wind electrons have been made from a low orbit around the moon. Solar-wind electrons can be identified up to energies of about 3000 eV, at which an electron population of entirely different characteristics becomes dominant. The solar-wind cavity on the moon's antisolar side shows evidence of being filled by plasma coming from the downstream direction. When the direction of the interplanetary field corresponds to solar ecliptic azimuth angles of about 90 deg, a partial solar-wind cavity extends across most of the eastern sunlit side of the moon within 20 deg of the moon meridian. There are localized increases in the 500-eV electron flux over much of the sunlit hemisphere. These increases are interpreted to be the result of an interaction between the solar wind and the moon that deflects some of the solar-wind flow and results in limb shocks.
Document ID
19720058737
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Anderson, K. A.
Chase, L. M.
Lin, R. P.
Mcguire, R. E.
(California, University Berkeley, Calif., United States)
Mccoy, J. E.
(NASA Manned Spacecraft Center Houston, Tex., United States)
Date Acquired
August 6, 2013
Publication Date
September 1, 1972
Publication Information
Publication: Journal of Geophysical Research
Volume: 77
Subject Category
Space Radiation
Accession Number
72A42403
Funding Number(s)
CONTRACT_GRANT: NAS9-10509
Distribution Limits
Public
Copyright
Other

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