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The Evershed Effect in Sunspots: A Theoretical Explanation

✍ Scribed by Benjamin Montesinos; John H. Thomas

Book ID
111526653
Publisher
Springer Netherlands
Year
1998
Tongue
English
Weight
132 KB
Volume
263
Category
Article
ISSN
0004-640X

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πŸ“œ SIMILAR VOLUMES

The Evershed motion in sunspots
The Evershed motion in sunspots
✍ S. M. Chitre πŸ“‚ Article πŸ“… 1968 πŸ› Springer 🌐 English βš– 373 KB

The Evershed motion is postulated as a steady, laminar flow of material along a limiting field line which separates the umbral magnetic field from the penumbral. Assuming that the Evershed flow starts from the spot-base with a velocity which is adequate to carry the convective flux at that level, th

Fine structure and evershed motions in t
Fine structure and evershed motions in the sunspot penumbra
✍ D. J. Galloway πŸ“‚ Article πŸ“… 1975 πŸ› Springer 🌐 English βš– 348 KB

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

The evershed effect as a wave phenomenon
The evershed effect as a wave phenomenon
✍ P. Maltby; G. Eriksen πŸ“‚ Article πŸ“… 1967 πŸ› Springer 🌐 English βš– 449 KB

It is suggested that longitudinal compression waves are propagating parallel to the solar surface from the umbra towards the photosphere. It is shown that the line-absorption coefficient is asymmetrical, when integrated over a wavelength of the compression wave. The effect of the waves on the line p