CME Brightness at Large Elongations: Application to LASCO and SMEI Observations

Details CME Brightness at Large Elongations: Application to LASCO and SMEI Observations CME Brightness at Large Elongations: Application to LASCO and SMEI Observations

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh32a..03v&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SH32A-03

Physics

7513 Coronal Mass Ejections (2101), 7594 Instruments And Techniques

Scientific paper

The traditional analysis of the CME brightness relied on the assumption that all lines of sight through the CME were parallel due to the large distance between the observer and the event. However, this assumption is not correct when CME observations at large distances from the Sun are concerned. In a recent paper (Vourlidas & Howard 2006) we have outlined the proper geometry and presented a few theoretical predictions about the brightness evolution of CME launched at various angles relative to the Sun-observer line. In this talk, we use LASCO and SMEI observations of the same events to test our predictions and see how we can use our theoretical framework to interpret the observed CME structures.

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