Wave-Particle Interaction in the Bastille Shock of Year 2000

Diffusive shock acceleration process is regarded as one of the most important processes for astrophysical particle acceleration. We treat an ESP (energetic storm particle) event associated with an interplanetary shock (IPS) arrived at 1AU about 28 hours after a large flare/CME event happened in 14 July 2000 (known as the Bastille event). Using the magnetic field data from Geotail (X=24.9 Re, Y=7.4Re, Z=-1.8Re), and flux data of protons (similar to several x10(2) keV) from SOHO (X=2.2Re, Y=-67.8Re, Z=12.3Re), we study the wave-particle interaction in the upstream region of this IPS.