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Solar Flares as an Ongoing Magnetic Reconnection Process

Published online by Cambridge University Press:  12 April 2016

Saku Tsuneta*
Affiliation:
Institute of Astronomy, The University of Tokyo, Mitaka, Tokyo 181, Japan

Abstract

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The soft X-ray images taken by the Yohkoh Soft X-ray Telescope (SXT) provide a powerful new tool to solve the mechanism of solar flares. In particular, a limb flare that occurred on 1991, December 2 gives us convincing evidence that magnetic reconnection of a neutral sheet formed at the loop top participates in the flare energy release. The neutral sheet appears to be associated with a destabilized rising loop system (filament) sheared with respect to the flaring loop. Similar formations of X-ray arcades are seen in the quiet Sun associated with filament eruptions on much larger spatial dimension and with a much smaller energy scale.

Type
Session 5. Fields in the Chromosphere and Corona
Copyright
Copyright © Astronomical Society of the Pacific 1993

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