Three Dimensional Modeling of a CME event Observed in LASCO and UVCS

Details Three Dimensional Modeling of a CME event Observed in LASCO and UVCS Three Dimensional Modeling of a CME event Observed in LASCO and UVCS

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh12b0750k&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SH12B-0750

Physics

7513 Coronal Mass Ejections, 7531 Prominence Eruptions

Scientific paper

The dynamics of magnetic flux ropes near the sun are studied by solving model equations [1,2] which describe a flux-rope-geometry coronal mass ejection (CME). This model is applied to a 2000 February 11 CME event, which was observed by both the UVCS spectrometer and the LASCO coronagraph. The UVCS spectrometer provides line-of-sight Doppler velocities for the CME plasma, while LASCO images provide position and velocity information for the CME projected onto the plane of the sky. The result is three-dimensional (3D) data that can be compared to 3D model results. However, ambiguities in the model-data correspondence depend both on the assumed density structure within the model flux rope and the interpretation of the data. The data (EIT, MK4, LASCO, UVCS) and corresponding model results will be presented and discussed. [1] Chen, J. 1996, JGR, 101, 27499 [2] Krall, J. et al., 2000, ApJ, 539, 964 Supported by ONR.

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