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Magnetic Topology and Current Sheet Formation

Published online by Cambridge University Press:  27 September 2017

Spiro K. Antiochos
Spiro K. Antiochos*
Affiliation:
E.O. Hulburt Center for Space Research, Naval Research Lab

Abstract

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We describe a mechanism for coronal heating. The basic idea is that since the photospheric flux is observed to consist of a complex pattern of positive and negative polarity regions, the topology of the coronal magnetic field (in particular the connectivity) must be discontinuous over a complex network of surfaces and magnetic null points in the corona. Consequently, photospheric motions of the field line footpoints, even if arbitrarily smooth, result in discontinuous stressing of the field. This produces coronal current sheets, reconnection at the null points, and rapid heating.

Type
Session III: Theory
Information
International Astronomical Union Colloquium , Volume 104 , Issue 2: Solar and Stellar Flares , 1989 , pp. 277 - 280
Copyright
Copyright © Kluwer 1989

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