Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm14a..06c&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SM14A-06
Physics
2712 Electric Fields (2411), 2722 Forecasting (7924, 7964), 2724 Magnetopause And Boundary Layers, 2752 Mhd Waves And Instabilities (2149, 6050, 7836), 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
Since launch the THEMIS spacecraft have traversed the boundary layer of mixed magnetosheath/magnetospheric plasmas spanning the Earth's magnetopause multiple times. This is a region charaterised by a broad spectrum of electromagnetic fluctuations over a frequency range of mHz up to the local ion gyro-frequency. In this presentation we examine the properties of these waves with particular emphasis on mode conversion from surface or fast mode waves to kinetic Alfven waves on the Alfven speed gradients that exist across the magnetopause. We examine the subsequent particle acceleration processes that these waves may drive within the magnetosphere and provide estimates of the ability of these waves to transport magnetosheath plasmas across the magnetopause into the magnetosphere.
Angelopoulos Vassilis
Auster Uli
Bonnell Jerry
Carlson Carl W.
Chaston Christopher. C.
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