Particle precipitation associated with transverse Pc5 pulsations
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概要
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Interactions between Pc5 pulsations and particles are investigated with the magnetic field data obtained by the DE-1 polar orbiting satellite and the precipitating electron data from the DMSP satellites. We found geomagnetic conjunction events of DE-1 and DMSP in which these satellites respectively observed Pc5 pulsations and particle precipitation approximately on the same geomagnetic field lines. The invariant latitude ranges for the observations of Pc5 and precipitation of 3 keV electrons were almost the same. A statistical study also showed that the region of the central plasma sheet obtained by P. T. NEWELL and C.-I. MENG (J. Geophys. Res., 99,273,1994) falls in the region of the occurrence of transverse Pc5 pulsations. The precipitation of electrons having energies greater than 3 keV was investigated. It is shown that there are differences in the characteristics of 30 keV electron precipitation between the cases in which pulsations were observed and those in which pulsations were not observed. These results suggest that electrons are modulated by transverse Pc5 pulsations.
- 国立極地研究所の論文
著者
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Nose Masahito
Geophysical Institute Faculty Of Science Kyoto University
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Iyemori Toshihiko
Geophysical Institute, Faculty of science, Kyoto University
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Sugiura Masahisa
Institute of Research and Development, Tokai University
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Slavin James
NASA Goddard Space Flight Center
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Iyemori Toshihiko
Geophysical Institute Faculty Of Science Kyoto University
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Sugiura Masahisa
Institute Of Research And Development Tokai University
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