Dominant Acceleration Processes of Energetic Protons at the Earth ' s Bow Shock

We examined magnetic field and energetic ( E 3 30 keV) proton and ( E 3 220keV) electron observations obtained by the spacecraft IMP-6, 7, and 8 in the vicinity of both the (quasi-) parallel and (quasi-) perpendicular bow shock of the Earth. The observations analysed show that: (a) for a quasi-perpendicular (45 < Os. c 90") region of the bow shock, the… CONTINUE READING