Published 1977
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Simultaneous Observations of Cosmic Ray Particles in a Corotating Interplanetary Structure at Different Solar Distances between 0.3 and 1 AU from HELIOS 1 and 2 and IMP 7 and 8
- Other:
- Christov, C. Ya
Abstract
From December 1975 to June 1976 we observed an evolving recurrent proton enhancement with IMP 7/8 and Helios 1/2 at different distances from the sun. The corotating character is established over 4 solar rotations. Due to the unique constellation in March 1976 simultaneous measurements were possible which allowed a study of the radial development undisturbed by temporal effects. The intensity variation of the ~4 - 13 MeV protons between 0.43 and 1 AU revealed a sudden increase to a large positive gradient (+329 %/AU) in the leading edge of the event. This value is consistent with a major source outside 1 AU. We suggest an interplanetary acceleration which becomes sufficiently effective within a fast solar wind stream.
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© 1977 Bulgarian Academy of Sciences. Provided by the NASA Astrophysics Data System.Attached Files
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- CaltechAUTHORS:20140411-155959876
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2014-04-15Created from EPrint's datestamp field
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2019-10-03Created from EPrint's last_modified field
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- Space Radiation Laboratory
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- 1977-06