Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh32a0782a&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SH32A-0782
Other
2114 Energetic Particles (7514), 2139 Interplanetary Shocks, 2149 Mhd Waves And Turbulence (2752, 6050, 7836)
Scientific paper
We investigate the properties of interplanetary shocks that form ahead of virtually all fast propagating coronal mass ejections (CMEs). Understanding the characteristics of these shocks and their surrounding regions is of great interest as they play a major role in the acceleration of solar energetic particles (SEPs). In this work we study low frequency waves upstream and downstream of interplanetary shocks (IP) observed by the twin spacecraft mission STEREO. In the upstream region waves can be generated by ion beams reflected or otherwise energized at the shock. Downstream the wave spectrum may be formed by both, waves generated locally and waves transmitted through the shock.The efficiency of wave generation and wave convection to the shock depends on the shock Mach number, and the angle between the IMF and the shock normal. Waves can disturb the shock and participate in ion acceleration processes. Multi-point STEREO measurements will allow us to study wave characteristics in different regions near IP shocks and determine the effects that these fluctuations have on particle energization.
Aguilar-Rodriguez Ernesto
Blanco-Cano Xochitl
Krauss-Varban Dietmar
Luhmann Janet G.
Russell Christopher T.
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