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Figure 1: a) Variation of total radiant flux as a function of radial distance from Sun centre, i.e., radial brightness profiles b) measured radiant flux off-limb (solid line), calculated flux due to scattering (dot-dash line) and the percentage of the total radiant flux due to scattering (dotted line). |
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Figure 2: Variation of the Doppler width (uncorrected for instrumental width contributions) versus radial distance for the 26 478/26 479 and 26 542/26 543 datasets, as indicated by the numbers shown in each plot. The thick black lines show the result of a box-car averaging to remove the effects of the FPN. Radial distance locations where the radiance fell below a critical S/N value do not show the results of the line width measurements. |
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Figure 3: Ratio of Mg X 624/609 as a function of radial distance in arcsec for the 26 478/26 479 and 26 542/26 543 datasets. Representative uncertainties for the 26 478/26 479 datasets are plotted as error bars. The original unsmoothed ratio values for the 26 478/26 479 datasets are shown in grey for comparison. |
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