HR: 0800h
AN: SH51B-03    [Abstracts]
TI: Wind observations of Fast Fermi acceleration at curved interplanetary shocks
AU: * Pulupa, M
EM: pulupa@ssl.berkeley.edu
AF: Space Sciences Laboratory, 7 Gauss Way, Berkeley, CA 94720-7450, United States
AU: * Pulupa, M
EM: pulupa@ssl.berkeley.edu
AF: UC Berkeley Physics Department, 366 LeConte Hall , Berkeley, CA 94720-7300, United States
AU: Bale, S D
EM: bale@ssl.berkeley.edu
AF: Space Sciences Laboratory, 7 Gauss Way, Berkeley, CA 94720-7450, United States
AU: Bale, S D
EM: bale@ssl.berkeley.edu
AF: UC Berkeley Physics Department, 366 LeConte Hall , Berkeley, CA 94720-7300, United States
AB: Interplanetary shocks can accelerate electrons by a Fast Fermi mechanism, as evinced by reflected upstream beams similar to those observed at planetary bow shocks. We present Wind observations of loss cone electron distributions characteristic of Fast Fermi acceleration, and estimate the cross shock potential from the width of the loss cone. We also present evidence for and discuss the implications of mesoscale (several R_E) curvature on interplanetary shock fronts, which creates `bays' where particles may be multiply reflected.
DE: 2114 Energetic particles (7514)
DE: 2139 Interplanetary shocks
DE: 7807 Charged particle motion and acceleration
DE: 7845 Particle acceleration
DE: 7851 Shock waves (4455)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly