Physics
Scientific paper
Apr 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jgr...105.7459g&link_type=abstract
Journal of Geophysical Research, Volume 105, Issue A4, p. 7459-7464
Physics
39
Interplanetary Physics: Pickup Ions, Interplanetary Physics: Plasma Waves And Turbulence
Scientific paper
Observations of the composition of inner source pickup ions in the solar wind, from the Solar Wind Ion Composition Spectrometer on Ulysses, are presented. The composition is similar to that of the solar wind and, in particular, contains volatile elements such as neon. These observations suggest strongly, and perhaps conclusively, that inner source pickup ions result from solar wind particles that are embedded in dust grains and then released. Our observations also suggest that inner source pickup ions may be an important source for particles accelerated at shocks surrounding corotating interaction regions since the resulting composition will resemble that of the solar wind, as is observed. Mechanisms are described whereby inner source pickup ions can be preferentially injected into the shock acceleration mechanism.
Fisk Len A.
Geiss Johannes
Gloeckler George
Schwadron Nathan A.
Zurbuchen Thomas H.
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