Observations of the Mg i and ii resonance lines in an active region |
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Authors: | Marc S Allen Howard C McAllister |
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Institution: | (1) Institute for Astronomy, University of Hawaii, 96822 Honolulu, HI, U.S.A. |
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Abstract: | Spectra from 2678-2931 Å were obtained of an active region during the 19 June 1974, flight of the University of Hawaii rocket-borne echelle spectrograph. We report behavior of the Mg i and ii resonance line cores in quiet Sun, plage, sunspot, and filament structures. Among the interesting variations in these lines we discern a strong suppression of the red Mg ii emission peaks and possible rapid changes in the Mg i core in the spatially partially resolved sunspot. |
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