Large-scale magnetic variances near the South Solar Pole

Details Large-scale magnetic variances near the South Solar Pole Large-scale magnetic variances near the South Solar Pole

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...45j&link_type=abstract

International Solar Wind 8 Conference, p. 45

Computer Science

Interplanetary Magnetic Fields, Heliosphere, Ulysses Mission, Cosmic Rays, Diffusion, Temporal Distribution, Random Walk

Scientific paper

We summarize recent Ulysses observations of the variances over large temporal scales in the interplanetary magnetic field components and their increase as Ulysses approached the South Solar Pole. A model of these fluctuations is shown to provide a very good fit to the observed amplitude and temporal variation of the fluctuations. In addition, the model predicts that the transport of cosmic rays in the heliosphere will be significantly altered by this level of fluctuations. In addition to altering the inward diffusion and drift access of cosmic rays over the solar poles, we find that the magnetic fluctuations also imply a large latitudinal diffusion, caused primarily by the associated field-line random walk.

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