Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsh51c1225x&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SH51C-1225
Physics
7513 Coronal Mass Ejections (2101), 7594 Instruments And Techniques, 7924 Forecasting (2722), 7974 Solar Effects
Scientific paper
In this study, we investigate the relationships between the CME brightness observed by LASCO coronagraphs and the plasma density in the solar wind disturbance region, i.e, the interplanetary shock and the associated interplanetary CME (ICME) region. We derive the excess density and fluxes of mass, momentum and energy of a CME via the brightness of LASCO images, which is proportional to the plasma density of the CME, subtracting a background (a pre-event image) brighness. The excess density and fluxes of the solar wind disturbance was obtained by integrating the in-situ measured excess (above a ambient level) density, momentum, and energy over the duration of the disturbance. We find that there are good correlations between the excess density, and fluxes of mass, momentum and energy of CME in the corona and those in the ICME region. Also, we examine the effects of the CME interaction and thomson scattering on the correlation analysis results.
Cyr C. C. St.
Lara Alejandro
Vourlidas Angelos
Xie Hehu
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