Emission measures and structure of the t
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Chung-Chieh Cheng; O. Kjeldseth Moe
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Article
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1977
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Springer
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English
β 492 KB
Absolute intensities of emission lines in the wavelength range from 1200 A to 1817 A from the large sunspot in McMath region 12510 near Sun center are presented. The intensities are averaged across the umbra and penumbra of the sunspot. The observations were made with the NRL slit spectrograph on Sk