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Fine structure and evershed motions in the sunspot penumbra

โœ Scribed by D. J. Galloway

Publisher
Springer
Year
1975
Tongue
English
Weight
348 KB
Volume
44
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

The observed inhomogeneity of the intensity and Evershed motions means any model of the penumbra must be essentially inhomogeneous. A simple model is put forward in which the interaction of convection rolls with an initially homogeneous magnetohydrostatic sunspot field causes a concentration of flux in the dark filaments. This process drives Evershed motions outwards in these regions; the motions are superficial and shear the lines of force, so that the field appears stronger and more horizontal in the dark filaments. This situation must be time-dependent to avoid rapid destruction of the whole spot.

๐Ÿ“œ SIMILAR VOLUMES

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