Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh23a1141s&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SH23A-1141
Physics
7829 Kinetic Waves And Instabilities, 7867 Wave/Particle Interactions (2483, 6984)
Scientific paper
Solar activity such as type III bursts can produce energetic electron beams moving along the background magnetic field in the solar wind. At 1 AU observations have detected electron bursts with broader electron pitch angle distributions than predicted by magnetic focusing. Observations also have found a maximum of pitch angle width as a function of energy. If the broadening were associated with an instability, one plausible candidate would be the electron/electron instability. We have done Particle-In-Cell (PIC) simulations to demonstrate the energy dependence of perpendicular heating of the electron beams with variations of both density and beam speed. Our results suggest that relatively intense solar bursts can lead to a maximum in the pitch angle width-energy profile.
Gary P.
Saito Shuji
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