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Published online by Cambridge University Press: 30 March 2016
A few recent observations of interplanetary fields and plasmas are discussed, including the evolution over several years of the longitudinal sector pattern, the corotating filamentary structure that exists within the sectors, guiding of solar cosmic rays along such magnetic filaments, a field-aligned thermal anisotropy of the plasma, and a small component of corotating plasma velocity observed at 1 AU. The solar wind plasma streaming past spacecraft near 1 AU contains a large amount of information about the detailed structure of the Sun.
This paper was prepared while the author was a guest at the Division of Plasma Physics, The Royal Institute of Technology, Stockholm, Sweden.