Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsh12a..08n&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SH12A-08
Other
2114 Energetic Particles, Heliospheric (7514), 2134 Interplanetary Magnetic Fields, 2139 Interplanetary Shocks
Scientific paper
We consider data from four spacecraft: ACE (plasma, field, and energetic particles), SOHO (plasma and energetic particles), Genesis (plasma and field direction), and Wind (plasma, field, and energetic particles). The study is limited to four typical energetic-particle events following solar east-side flares in which the peak particle flux was observed between 5 and 13 hours after passage of a fast forward shock. The three spacecraft with energetic particle detectors saw approximately the same large-scale intensity profiles, but the localized increase at the shock passage differed from one spacecraft to another. Passage of tangential discontinuities affected the energetic-particle intensities both ahead of and behind the shocks. The shock parameters calculated from Rankine-Hugoniot fits to the ACE data were consistent with only one third of the shock arrival times at the other three spacecraft. This misfit suggests some curvature or spatial variation of the shock front.
Giacalone Joe
Neugebauer Matthias
Smith Walter C.
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