Fine structure in the inner corona observed at the 1970 eclipse |
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Authors: | T Tsubaki H Kurokawa M Kanno |
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Institution: | (1) Institute of Earth Science and Astrophysics, University of Shiga, Ohtsu, Japan;(2) Kwasan Observatory, University of Kyoto, Yamashina, Kyoto, Japan;(3) Hida Observatory, University of Kyoto, Kamitakara, Gifu-Ken, Japan |
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Abstract: | On the slit spectrogram obtained at the 1970 eclipse in Mexico, the intensities of four coronal lines (Nixiii 5116, Fexiv 5303, Fex 6374, and Nixv 6702) and the continuum were measured as a function of distance along the slit. It is found that there exist a lot of fine fluctuations both in the lines and in the continuum intensities superposed on a large scale formation. The correspondence of such fluctuations between the continuum and the lines is good, with the exception of the line 6374 which shows a peculiar fluctuation. It is shown that the intensities of the three lines 5116, 5303, and 6702 seem to be proportional to the square of the continuum intensity while the 6374 line intensity may be proportional to the fourth power or more. |
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