On the Relativistic Electron Injection Event in Early April 2010

Details On the Relativistic Electron Injection Event in Early April 2010 On the Relativistic Electron Injection Event in Early April 2010

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm51b2079b&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM51B-2079

Physics

[2720] Magnetospheric Physics / Energetic Particles: Trapped

Scientific paper

Beginning in early 2008, the MeV electron population in the Earth's radiation belts began declining and reached an unprecedented low in the autumn. This minimum continued until early April 2010 when a large relativistic electron injection event occurred. An extraordinary feature of this event was that high intensities of multi-MeV electrons extended out to beyond L=7, and the energy spectrum was very hard, extending to several MeV. Observations are available from many spacecraft including HEO1 & HEO3, ICO-F2, SAMPEX, and GOES. Also data are available from several GOES spacecraft including observations with the HEPAD sensors that give clear evidence that the electron energies extended to above 10 MeV. These data and other information on the state of the magnetosphere suggest that loss processes were subdued during this time period, enabling the magnetospheric electron accelerator to operate effectively over an extended time period

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