Loop-Type CME Produced by Magnetic Reconnection of Two Large Loops at the Associated Arcade Flare

Details Loop-Type CME Produced by Magnetic Reconnection of Two Large Loops at the Associated Arcade Flare Loop-Type CME Produced by Magnetic Reconnection of Two Large Loops at the Associated Arcade Flare

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mwoc.conf..199u&link_type=abstract

Multi-Wavelength Observations of Coronal Structure and Dynamics -- Yohkoh 10th Anniversary Meeting. Proceedings of the conferenc

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We claim from observational analyses that there are, at least, two distinctly different types among CME's: One with a bubble shape expanding roughly isotropically with constant velocity caused by explosive flares (Bubble-type), and the other with a large loop shape whose anchor point in the middle is released by the occurrence of an arcade flare between the footpoints of CME's, rising with acceleration and deformation (Loop-type). The characteristic difference between these types is that the footpoints stay fixed on the solar surface in the Loop-type, whereas the structure does not have such fixed footpoints for the Bubble-type since the skirts of the bubble (Moreton wave and EIT wave separately propagating) sweep on the solar surface. We investigate MHD models for these two types of CME's, fulfilling the observed characteristics described above, with our 3D MHD simulations, and show dynamic behaviors of those with movies. We believe that these are examples of new generation approach with time-dependent 3D MHD modelling, allowing actual comparison of dynamic models with dynamic results from advanced observations.

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