Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm24a..04b&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SM24A-04
Physics
[2778] Magnetospheric Physics / Ring Current, [2788] Magnetospheric Physics / Magnetic Storms And Substorms
Scientific paper
We analyze energetic neutral atom (ENA) data acquired by the dual-spacecraft Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) stereo imaging mission, for several high speed stream events during 2008-2010. For comparison with TWINS data, 3D particle fluxes and synthetic ENA images are computed using the Comprehensive Ring Current Model (CRCM). The effect of variations in the global pitch-angle distribution upon synthetic (CRCM) ENA images is also shown, providing a method for constraining the pitch-angle distributions consistent with the stereo images obtained by TWINS. From such TWINS-CRCM comparisons we infer global ring current dynamics for each high speed stream storm, and examine which dynamical features are common to multiple different high-speed-stream events.
Buzulukova N.
Fok M. H.
Goldstein Jeffrey Jay
McComas David John
Redfern J. A.
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