Width of emission cores of the line K Ca ii in sunspots |
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| Authors: | R. B. Teplitskaja S. A. Efendieva |
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| Affiliation: | (1) Siberian Institute of Terrestrial Magnetism, Ionosphere, and Radio-Wave Propagation, Irkutsk, U.S.S.R. |
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| Abstract: | Emission core widths of K Ca ii line in the umbra and penumbra of 9 sunspots and in their vicinity are measured. All sunspots are located near the solar disc center. Data on variation of widths WK along the  mean sunspot radius are obtained. Values WK in the umbra and penumbra centers are equal or somewhat less than on stars of the same luminosity. |
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