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Figure 1: Schematic illustration of a reconnection model of a solar flare. The solid lines indicate the magnetic field lines, the thin arrows indicate the propogation of thermal conduction and the thick arrows show the plasma motion. |
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Figure 2: Location of the flare loop system on the northeast limb. The whole sun image is a SOHO/EIT 195 Å image while the inset is the loop system in TRACE 171 Å image. Both images were taken shortly after 06:00 on 1999 March 18. |
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Figure 3: Diagram showing Yohkoh SXT and SOHO EIT data displaying the loop system at 07:00 UT on 1999 March 18. The crosses mark the centre of the footpoints for the EIT images. |
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Figure 4: Snapshots from TRACE 171 Å showing the time evolution of the flare loop system. |
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Figure 5: Decay curves for 171 Å (asterix) and 195 Å (diamonds) for the observational box indicated in the left hand image. Time at 0 s is 06:00:00 UT. |
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Figure 6: Slice across the loop footpoints showing the rise and separation at 171 Å. The dashed line shows the slice taken through the footpoints and the solid lines show the velocity gradient for each footpoint. The dot-dash lines indicate the box used to calculate the error for the velocity (see Sect. 2.2). Time at 0 s is 06:00:00 UT. |
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Figure 7: Slice through the left footpoint of the loop, showing the expansion velocity of the flare loops in 195 Å. The time-slice image was created by integrating the intensity between the dashed lines. |
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Figure 8: Slice through the peak of the loop, showing the expansion velocity of the flare loops in 171 Å and 195 Å. The time-slice image was created by integrating the intensity between the dashed lines. The white line indicates the gradient and hence calculated velocity taken from each image. |
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Figure 9: Diagram showing the line of sight which would depict a 3D arcade structure lighting up. |
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