Coronal electron density maps for 7 March, 1970, derived from Mgx λ625 spectroheliograms |
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Authors: | G L Withbroe A K Dupree L Goldberg M C E Huber R W Noyes W H Parkinson E M Reeves |
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Institution: | (1) Harvard College Observatory, Cambridge, Massachusetts, U.S.A. |
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Abstract: | We have analyzed daily Mgx 625 spectroheliograms acquired by the Harvard College Observatory experiment on OSO-6 for a 28-day period centered on 7 March, 1970, the date of a well-observed total solar eclipse. These data are used to construct maps of the variation across the solar disk of the electron density at the base of the corona. The correspondence of high and low density regions with regions of enhanced and reduced emission in white light and Mgx pictures made during or near the time of the eclipse are described. |
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