Evidence for Magnetic Reconnection in CMEs and Eruptive Flares

Physics

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7513 Coronal Mass Ejections, 7524 Magnetic Fields, 7531 Prominence Eruptions, 7835 Magnetic Reconnection

Scientific paper

Magnetic reconnection is believed to be the most important process in the Sun's corona for transferring energy from magnetic field to plasma; hence, reconnection plays the central role in theories for all types of solar activity ranging from the smallest spicules to giant CMEs. In particular, reconnection has long been thought to be the mechanism for the heating and formation of closed flare loops and the ejected plasmoid/flux rope. Observational and theoretical results will be presented, which will make a compelling case for this type of reconnection. Reconnection has also been proposed as the initiation process for CMEs and eruptive flares. Theoretical models for this type of reconnection will be discussed. The observational evidence in this case is less definitive. I will demonstrate, however, that flare observations by TRACE also give strong support for the type of reconnection expected in the ``breakout'' model for CME initiation. This work was supported in part by NASA and ONR.

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