Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh23a1933d&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SH23A-1933
Physics
[2101] Interplanetary Physics / Coronal Mass Ejections, [7924] Space Weather / Forecasting
Scientific paper
On 1 August 2010, the two STEREO spacecraft observed the initial development of four coronal mass ejections (CMEs). Applying the geometric and polarimetric localization techniques to the COR1 and COR2 data for these CMEs, we present a thorough analysis of the velocity, acceleration, size, and shape for each CME out to 15Rsun. We show that all CMEs underwent latitudinal and longitudinal deflections, as well as radial acceleration. In addition, based on a point-by-point reconstruction of each CME using polarimetric localization, we analyse the internal structure of the CMEs. An example of such an analysis is shown in the attached figure. The abscissa, labelled XHCME, points from the Sun along the CMEs axis of propagation, while the ordinate, labelled ZHCME, is the solar rotational axis. From this figure, we see evidence of a cavity near the front of the CME.
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