Astronomy and Astrophysics – Astronomy
Scientific paper
May 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640613d&link_type=abstract
American Astronomical Society, AAS Meeting #216, #406.13; Bulletin of the American Astronomical Society, Vol. 41, p.882
Astronomy and Astrophysics
Astronomy
Scientific paper
We are investigating numerically the initiation of coronal mass ejections (CMEs) in scenarios in which two bipolar active regions, side by side, spawn solar eruptions. If the overall topology is more complex than bipolar, with a magnetic null and separatrices dividing the coronal field into two or more flux systems, then the configuration is susceptible to magnetic-breakout eruptions. Previously, we found that stressing the polarity inversion line (PIL) separating the two active regions eventually initiates an eruption that breaks open the central arcade of the combined structure, while stressing the interior PIL of either active region initiates an eruption in a side arcade of the configuration. Stressing both interior PILs of the active regions together raises the possibility of initiating paired sympathetic eruptions, either simultaneous or delayed, in the remote side arcades. We will report our progress on simulating and understanding these more complex scenarios for CME initiation and their observational implications. Our research is supported by NASA.
Antiochos Spiro K.
DeVore Richard C.
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