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AMPTE/CCE observations of the plasma composition below 17 keV during the September 4, 1984 magnetic storm
Author(s) -
Shelley E. G.,
Klumpar D. M.,
Peterson W. K.,
Ghielmetti A.,
Balsiger H.,
Geiss J.,
Rosenbauer H.
Publication year - 1985
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl012i005p00321
Subject(s) - plasmasphere , magnetosphere , ring current , magnetopause , geomagnetic storm , solar wind , physics , storm , atmospheric sciences , plasma , geophysics , van allen probes , ion , meteorology , van allen radiation belt , nuclear physics , quantum mechanics
Observations from the Hot Plasma Composition Experiment on the AMPTE/CCE spacecraft during the magnetic storm of 4‐5 September 1984 reveal that significant injection of ions of terrestrial origin accompanied the storm development. The compression of the magnetosphere at storm sudden commencement carried the magnetopause inside the CCE orbit clearly revealing the shocked solar wind plasma. A build up of suprathermal ions is observed near the plasmapause during the storm main phase and recovery phase. Pitch angle distributions in the ring current during the main phase show differences between H + and O + that suggest mass dependent injection, transport and/or loss processes.

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