HR: 11:44h
AN: SH52A-05    [Abstracts]
TI: Forward Modeling of CMEs Using LASCO Data and for the STEREO Mission
AU: * Thernisien, A F
EM: arnaud.thernisien@nrl.navy.mil
AF: Universities of Space Research Association, Naval Research Lab., Code 7663, 4555 Overlook Ave SW, Washington, DC 20375 United States
AU: Howard, R A
EM: russell.howard@nrl.navy.mil
AF: Naval Research Lab., Code 7660, 4555 Overlook Ave SW, Washington, DC 20375 United States
AU: Cook, J W
EM: john.cook@nrl.navy.mil
AF: Naval Research Lab., Code 7660, 4555 Overlook Ave SW, Washington, DC 20375 United States
AB: The future STEREO mission, due to launch in early 2006, will have two twin satellites that will observe the Sun and its corona from two different points of view. The main goal of the mission is to understand how the CMEs are initiated and how they evolve during time. Using the two points of view will permit a reconstruction of the electron density and morphology of coronal structures such as CMEs. Two approaches are possible to reach that goal: an inversion technique, assuming no or little a priori assumptions of the structure, and a forward modeling technique, for which a morphology and location of the studied structure is assumed. In this poster we present a forward modeling method used to determined the electron density of different CMEs from SOHO-LASCO data. We used the graduated cylindrical shell (GCS) model, an empirical simulation of a flux-rope CME. We used time sequences and assumption of self similarity to have many views of the same CME for a best fit. We used also minimization techniques to find the best fit of the different model parameters.
DE: 7509 Corona
DE: 7513 Coronal mass ejections
DE: 7594 Instruments and techniques
DE: 7843 Numerical simulation studies
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2005 Joint Assembly