Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh41c09d&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SH41C-09
Physics
7531 Prominence Eruptions
Scientific paper
We have previously proposed and simulated a differential shear model for the formation of prominence magnetic fields. For very strong shears and highly stressed fields, reconnections between the prominence and the overlying arcade produce helical structures resembling flux ropes. The resulting configurations relaxed to evidently stable equilibria, showing no sign of imminent eruption, in the simple bipolar geometries we considered. Recently, we have turned our attention to more magnetically complex situations involving multipolar magnetic fields. These include an interacting two-prominence scenario, in which the ends of a pair of bipolar prominences come into contact and reconnect; and a single prominence in a 'breakout' topology, in which the overlying arcade can reconnect with an exterior field, thereby loosening the restraining forces holding down the prominence. Results from these simulations will be presented, and their implications for our understanding of prominence stability and eruption will be discussed.
Antiochos Spiro K.
DeVore Richard C.
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