On the interpretation of the π-component splitting in sunspot spectra |
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| Authors: | V. N. Obridko L. B. Demkina |
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| Affiliation: | (1) Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation, U.S.S.R.;(2) Academy of Sciences (IZMIRAN), Akademgorod, Moscow, U.S.S.R. |
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| Abstract: | It is shown that in order to explain the observed splitting of the  -component in the sunspot umbra spectrum by the hypothesis of the coexistence in sunspots of weak- and strong-field regions with opposite polarities, one has to admit the additional assumption that in the weak-field regions the Doppler halfwidth (  D) and the ratio between line opacity and continuum opacity ( 0) are both less than those in the strong-field regions. |
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