Upstream and magnetosheath energetic ions with energies to ≈2 MeV
Skoug, R. M.; Winglee, R. M.; McCarthy, M. P.; Parks, G. K.; Lin, R. P.; Anderson, K. A.; Carlson, C.; Ergun, R.; Larson, D.; McFadden, J.; Rème, H.; Bosqued, J.; d'Uston, C.; Sanderson, T. R.; Wenzel, K.‐P.; Lepping, R. P.; Szabo, A.; Skoug, R. M.; Geophysics Program, University of Washington, Seattle, WA; Winglee, R. M.; Geophysics Program, University of Washington, Seattle, WA; McCarthy, M. P.; Geophysics Program, University of Washington, Seattle, WA; Parks, G. K.; Geophysics Program, University of Washington, Seattle, WA; Lin, R. P.; Space Sciences Laboratory, UC Berkeley, Berkeley, CA; Anderson, K. A.; Space Sciences Laboratory, UC Berkeley, Berkeley, CA; Carlson, C.; Space Sciences Laboratory, UC Berkeley, Berkeley, CA; Ergun, R.; Space Sciences Laboratory, UC Berkeley, Berkeley, CA; Larson, D.; Space Sciences Laboratory, UC Berkeley, Berkeley, CA; McFadden, J.; Space Sciences Laboratory, UC Berkeley, Berkeley, CA; Rème, H.; C.E.S.R. Paul Sabatier University, Toulouse, France; Bosqued, J.; C.E.S.R. Paul Sabatier University, Toulouse, France; d'Uston, C.; C.E.S.R. Paul Sabatier University, Toulouse, France; Sanderson, T. R.; Space Sciences, ESA, ESTEC, Noordwijk, The Netherlands; Wenzel, K.‐P.; Space Sciences, ESA, ESTEC, Noordwijk, The Netherlands; Lepping, R. P.; NASA Goddard Space Flight Center, Greenbelt, MD; Szabo, A.; NASA Goddard Space Flight Center, Greenbelt, MD
Журнал:
Geophysical Research Letters
Дата:
1996
Аннотация:
We present the first observations of ≈2 MeV ion bursts detected in the upstream region and the magnetosheath by the three‐dimensional (3D) plasma and energetic particles instrument on the WIND spacecraft. This instrument measures the full 3D distribution of particles from a few eV to several MeV, and allows characterization of the upstream ions in both pitch angle and energy. The new feature observed is the presence of bursts of ions at energies extending up to ≈2 MeV, both upstream and in the magnetosheath. The observation of MeV ions has strong implications for the ion source and acceleration mechanisms.
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