Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsh22a..07h&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #SH22A-07
Physics
7807 Charged Particle Motion And Acceleration, 2114 Energetic Particles, Heliospheric (7514), 2139 Interplanetary Shocks
Scientific paper
ACE detected over 100 transient shocks from September 1997 to December 2000. Over 60% of these shocks produced ion enhancements at an energy greater than 46 keV. However, only 15% of these shocks have similar enhancements for an electron at energy greater than 38 keV. For some of those transient shocks that produced enhancements in both ions and electrons, the time-intensity profiles are nearly proportional, suggesting a common acceleration mechanism. However, there is no apparent correlation between the intensity enhancement factor between the ions and electrons. That is, large increases of ion intensities do not always correspond to comparable increases of the electron intensities. All except one transient shock that produced electron enhancement have shock normals greater than 50° . In this paper, we compare the spectra and angular distributions of both ions and electrons observed for some of these transient shock events.
Decker Robert B.
Ho George C.
Lairo D.
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