✦ LIBER ✦

The effects of magnetic structure on the conduction cooling of flare loops

✍ Scribed by Gerard Hoven

Publisher: Springer
Year: 1979
Tongue: English
Weight: 302 KB
Volume: 61
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00155450

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✦ Synopsis

A model of the sheared magnetic field in a coronal loop is used to evaluate the average cross-field suppression of axial thermal conduction. If the energy source is uniform in radius, this can lead to heat-flux reduction by a factor greater than three. When the source is annular, in a region of radius where the current density and shear are peaked, the effect can be significantly larger. In one extreme case, however, in which magnetic tearing provides the heating in a very narrow layer, the spatial resonance of the source excitation in a long loop leads to approximately axial conduction.

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