The continuum of the extreme limb and the chromosphere at the 1970 eclipse |
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| Authors: | H Kurokawa K Nakayama T Tsubaki M Kanno |
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| Institution: | (1) Kwasan Observatory, University of Kyoto, Yamashina, Kyoto, Japan;(2) Institute of Earth Science and Astrophysics, Shiga University, Ohtsu, Japan;(3) Hida Observatory, University of Kyoto, Kamitakara, Gifu-ken, Japan |
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| Abstract: | The flash spectra of the partial Sun and the chromosphere were obtained at the total solar eclipse on 7 March, 1970. We studied the distributions of the surface brightness of the continuum at six wavelengths in the visual region to compare them with the previous observations and the existing model atmospheres. All of the distributions show a shallow dip and a small hump similar to those of Heintze's observation at the 1954 eclipse. But the hump in our results is of quite a different type from that given by Heintze's revised model. It was found that none of the existing model atmospheres can reproduce this hump. The intensity distribution in the low chromosphere was also examined. |
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