A fast Fermi process - Energetic electrons accelerated by a nearly perpendicular bow shock

Details A fast Fermi process - Energetic electrons accelerated by a nearly perpendicular bow shock A fast Fermi process - Energetic electrons accelerated by a nearly perpendicular bow shock

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.8857w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, Oct. 1, 1984, p. 8857-8862.

Physics

132

Energetic Particles, Particle Acceleration, Solar Electrons, Solar Terrestrial Interactions, Space Plasmas, Thomas-Fermi Model, Electron Distribution, Shock Wave Profiles, Solar Wind

Scientific paper

The highly localized acceleration of electrons at the foreshock reported by Anderson et al. (1979) is explained in terms of a fast Fermi process. The basic notion is that in the solar wind frame the nearly perpendicular bow shock at the point of tangency of the interplanetary magnetic field acts as a fast-moving magnetic mirror which can reflect electrons with sufficiently large pitch angles. The reflection process can effectively energize electrons and drive them upstream. If the seed electrons have energies of several hundred electron volts, they can attain energies of several keV through the acceleration process.

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