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
On fine structure of the magnetic field and brightness in the penumbrae of sunspots
โ Scribed by H. I. Abdussamatov
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 353 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0038-0938
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โฆ Synopsis
From investigating spectrograms of penumbrae of some sunspots it is concluded that the maximum magnetic field strength occurs in dark filaments and amounts to 1800-1900 G; the intensity of the magnetic field in dark filaments is 100-400 G larger than in the neighbouring bright filaments; the bright filaments seen in the space between the dark features cannot be attributed to the ordinary undisturbed photosphere.
๐ SIMILAR VOLUMES
The peculiarities of magnetosensitive lines in the penumbral spectrum and the abnormal distribution of circular polarization in them are explained satisfactorily in terms of superposition of radiation originating in different elements of penumbral fine structure. Complicated asymmetric rvcontours ca