Physics
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..679..628b&link_type=abstract
SOLAR WIND TEN: Proceedings of the Tenth International Solar Wind Conference. AIP Conference Proceedings, Volume 679, pp. 628-6
Physics
3
Particle Emission, Solar Wind, Solar Wind Plasma, Sources Of Solar Wind
Scientific paper
Each year, beginning in 1994, a U.S./Australia collaboration has conducted a neutron monitor latitude survey from the United States to McMurdo, Antarctica and back over a ~6-month period. This experiment permits us to observe the high-energy cosmic ray spectrum as it evolves from the last solar activity minimum, through the recent maximum and magnetic polarity reversal, and into the early stages of the new polarity epoch. In this work, we focus on the controversial issue of whether a high-energy (~8 GeV) ``cross-over'' exists in spectra observed during opposite magnetic polarities. We report on a preliminary analysis of the data and discuss our findings. In particular, we investigate the sensitivity of the modulated cosmic ray spectrum to the sign of the Sun's magnetic field.
Bieber John W.
Clem James
Duldig Marc L.
Evenson Paul
Humble John E.
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