Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm23a2036k&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM23A-2036
Physics
Plasma Physics
[7845] Space Plasma Physics / Particle Acceleration, [7851] Space Plasma Physics / Shock Waves, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
In our study we analyze several individual upstream events observed by Cluster in the foreshock region. The region in front of the Earth's quasi-parallel bow shock is dominated by energetic particles and low-frequency, large-amplitude magnetic waves. The energetic ions are scattered in pitch-angle by these waves while the waves are thought to be excited locally by these energetic ions. The theoretical model of this coupling between waves and energetic particles has been verified in the past and proved to describe the physical process accurately. In our analysis we compare the predictions of the theory at each event with the observations by focusing on the two aspects of the wave-particle coupling: the excitation of waves by energetic particles and the pitch-angle scattering of energetic ions by waves.
Dandouras Iannis S.
Kis A.
Klecker Berndt
Lemperger I.
Lucek Elisabeth A.
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