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Energetic Electrons in Magnetosphere during Gradual Solar Energetic Particle Event Observations by Cluster

Published online by Cambridge University Press:  03 June 2005

C.J. Xiao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: cjxiao@pku.edu.cn
Z.Y. Pu
Affiliation:
Institute of Space Physics and Applied Technology, Peking University, Beijing 100871, China
H.F. Chen
Affiliation:
Institute of Space Physics and Applied Technology, Peking University, Beijing 100871, China
L. Xie
Affiliation:
Institute of Space Physics and Applied Technology, Peking University, Beijing 100871, China
Q.G. Zong
Affiliation:
Center for Space Physics, Boston University, U.S.A.
T.A. Fritz
Affiliation:
Center for Space Physics, Boston University, U.S.A.
P.W. Daly
Affiliation:
Max-Planck-Institut for Aeronomie, Katlenburg-Lindau, Germany
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Abstract

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More than 40 gradual SEPs have been observed by GOES and SOHO from 2001 to 2003. During 12 SEPs of all these events, energetic electron flux enhancements with energies from 38 keV to 337 keV were observed by RAPID onboard Cluster spacecraft. During these 12 events the variation of the energetic electron flux measured by RAPID/Cluster was closely associated to the variation of the solar energetic proton flux. The observed energetic electron flux was independent on the location of Cluster in the magnetosphere and the background level of magnetospheric electrons (even when the Cluster spacecraft was crossing the magnetopause, the plasma sheet and the low latitude boundary layer). The similar variation of the enhancement of energetic electron flux has also been observed by POLAR and Geotail in some of these events. In some of these events, the electron measurement of RAPID/Cluster will not be contaminated by the SEP protons.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Copyright
© 2005 International Astronomical Union