Particle acceleration at a termination shock. I - Application to the solar wind and the anomalous component

Details Particle acceleration at a termination shock. I - Application to the solar wind and the anomalous component Particle acceleration at a termination shock. I - Application to the solar wind and the anomalous component

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91.2929j&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, March 1, 1986, p. 2929-2932.

Physics

117

Cosmic Rays, Particle Acceleration, Shock Waves, Solar Wind, Heliosphere, Interplanetary Magnetic Fields, Simulation, Sunspot Cycle

Scientific paper

The results of a numerical study of the diffusive acceleration of charged particles at the termination shock of the solar wind are reported. In the model a realistic magnetic field structure is employed which is similar to that observed in the solar wind. In addition to causing spatial variation of the diffusion tensor, a major effect of the magnetic field is to cause guiding-center drifts of the accelerated particles, both in the solar wind and at the shock. It is demonstrated that the inclusion of the drifts has a large effect on the acceleration. It is concluded, furthermore, that acceleration at the termination shock, in conjunction with drifts, can explain several observed features of the anomalous component.

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