HR: 0800h
AN: SH51C-1225    [Abstracts]
TI: Relationships between CME brightness and in-situ plasma parameters observed at 1 AU
AU: * Xie, H
EM: hong.xie@ssedmail.gsfc.nasa.gov
AF: The Catholic University of America, 620 Michigan NW Ave., Washington DC, 20064
AU: * Xie, H
EM: hong.xie@ssedmail.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Code 612, Greenbelt, MD 20071
AU: St. Cyr, C
EM: Chris.StCyr@nasa.gov
AF: NASA Goddard Space Flight Center, Code 612, Greenbelt, MD 20071
AU: Lara, A
EM: alara@geofisica.unam.mx
AF: Instituto De Geofisica, UNAM, C.U.Mexico, Mexico City, 04510
AU: Vourlidas, A
EM: vourlidas@nrl.navy.mil
AF: Naval Research Laboratory, Code 7660, Washington, DC, 20375
AB: 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.
DE: 7513 Coronal mass ejections (2101)
DE: 7594 Instruments and techniques
DE: 7924 Forecasting (2722)
DE: 7974 Solar effects
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005