Investigation of Small Currents of Galactic Cosmic Rays

Details Investigation of Small Currents of Galactic Cosmic Rays Investigation of Small Currents of Galactic Cosmic Rays

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....7.3921k&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The experimental investigation results of appearance frequency dynamics of small currents (anisotropy) of galactic cosmic rays (GCR) are presented. It is found that the main and long periods with stable small currents (< 0,2 %) are observed in solar activity minima indep ending on the polarity of the general magnetic field of the Sun and the interplanetary neutral surface configuration. However, at the decay phase of the even solar cycles, recurrence solar wind streams are accompanied by the appearance of the period with very small currents. The decrease of galactic cosmic ray currents is observed mainly with distance of the Earth from the neutral surface in high-sp eed streams with the negative sign of the magnetic field. It is shown that the appearance of the stable period with small currents by the cosmic ray neutron component is accompanied by the similar decrease of the anisotropy by the muon component up to the 100 GeV energy.

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