Solar Trapped Particles

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May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.1205h&link_type=abstract

American Astronomical Society, SPD meeting #40, #12.05; Bulletin of the American Astronomical Society, Vol. 41, p.828

Astronomy and Astrophysics

Astronomy

Scientific paper

High-energy particles (>10 MeV protons) can be trapped in large-scale coronal magnetic fields for periods of days to weeks. We model this trapping by following the adiabatic motions of particles in test fields, including the Schrijver-DeRosa PFSS models. These are available in a SolarSoft interface for the entire duration of the SOHO mission thus far. In spite of the complexity of the field, we find drift shells in which particles can circulate completely around the Sun, and thus conserve the third adiabatic invariant of motion well. In this work we study the morphology of the these drift shells, including their appearance as a function of phase in the solar cycle.

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