FAST/TEAMS observations of charge exchange signatures in ions mirroring at low altitudes

L. M. Kistler, E. M̈bius, D. M. Klumpar, M. A. Popecki, L. Tang, V. Jordanova, B. Klecker, W. K. Peterson, E. G. Shelley, D. Hovestadt, M. Temerin, R. E. Ergun, J. P. McFadden, C. W. Carlson, F. S. Mozer, R. C. Elphic, R. J. Strangeway, C. A. Cattell, R. F. Pfaff, E. J. Lund

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Abstract

Using the TEAMS instrument on FAST, we have observed a case in which signatures of the inner edge of the plasma sheet are clearly observed in the energy spectra of ions mirroring at the FAST altitude. That inner edge is dominated by He+. We show that this is the natural composition expected from charge exchange as the ions drift in from the plasma sheet.

Original languageEnglish (US)
Pages (from-to)2085-2088
Number of pages4
JournalGeophysical Research Letters
Volume25
Issue number12
DOIs
StatePublished - Jan 1 1998

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