Abstract
Sometimes the π component of a normal triplet in the umbra of sunspots, observed with a quarter plate analyser, seems to be analysed. We explain this effect as a saturation effect.
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Reférénces
Severny, A. B.: 1959, Astron. Zh. (U.S.S.R.) 36, 208.
Unno, W.: 1956, Publ. Astron. Soc. Japan 8, 108.
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Henoux, J.C. Sur une particularité de la composante π du triplet normal dans l'ombre d'une tache. Sol Phys 4, 315–317 (1968). https://doi.org/10.1007/BF00149562
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DOI: https://doi.org/10.1007/BF00149562