Physics
Scientific paper
May 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3709103l&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 9, CiteID L09103
Physics
2
Magnetospheric Physics: Cusp, Magnetospheric Physics: Electric Fields (2411), Magnetospheric Physics: Magnetic Reconnection (7526, 7835)
Scientific paper
We report Cluster observations of oxygen energization by several keV at the boundary between the high latitude cusp and lobe. A localized electric field at the cusp/lobe boundary is responsible for a significant part of the observed energization. Such electric fields can be related to the separatrix region of reconnection at the magnetopause. Ions are accelerated as they move non-adiabatically in the spatially inhomogeneous electric field. Additional heating may be provided by low frequency waves at the oxygen gyrofrequency.
André Martial
Khotyaintsev Yu. V.
Lindstedt T.
Nilsson Hampus
Vaivads Andris
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