Arcade Flare Models
Much of the recent work on magnetic arcades is motivated by eruptive phenomena such as coronal mass ejections, prominence eruptions, and large two-ribbon flares. Arcade models of these phenomena are based on a rapid release of magnetic energy stored in coronal currents. However, the mechanisms by which the energy release is triggered vary from model to model. Some models trigger the release by a loss of ideal-MHD equilibrium, while others use a non-ideal processes such as magnetic reconnection. Models which invoke reconnection require the presence of a current sheet prior to the eruption of the field, but models which are based on a loss of equilibrium do not. By examining the observational evidence for the existence of a current sheet prior to the eruption, it may be possible to determine the Type of mechanism which triggers an eruption.
KeywordsCurrent Sheet Coronal Mass Ejection Solar Phys Flux Rope Neutral Line
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