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Figure 1: Temporal average image of MDI magnetograms; the two magnetic polarities are given in black and white. The large white rectangle shows the FOV that was covered by TRACE (cf. Fig. 5). The two small rectangles indicate the regions R1 and R2 that were used for magnetic field extrapolations (shown in Fig. 4). The colorbar gives magnetic flux values. |
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Figure 2: Spatial distribution of power for MDI intensity I. The top image shows the integrated power between 2.3-4.3 mHz (5 min range) and the bottom one between 5.5-7.5 mHz (2-3 min range). Dark areas have less power than bright ones. The large white rectangle shows the FOV that was covered by TRACE (cf. Fig. 5). The two small rectangles indicate the regions R1 and R2 that were used for magnetic field extrapolations (shown in Fig. 4). The colorbar gives arbitrary numbers. |
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Figure 3: Spatial distribution of power for MDI Doppler velocity v. The top image shows the integrated power between 2.3-4.3 mHz (5 min range) and the bottom one between 5.5-7.5 mHz (2-3 min range). Dark areas have less power than bright ones. The large white rectangle shows the FOV that was covered by TRACE (cf. Fig. 5). The two small rectangles indicate the regions R1 and R2 that were used for magnetic field extrapolations (shown in Fig. 4). The colorbar gives arbitrary numbers. |
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Figure 4:
Magnetic field extrapolation of two network cells:
R1 ( left) centered at x = -230
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Figure 5:
Detailed comparison of the spatial distribution of MDI
velocity power ( top) and TRACE 1700 Å intensity power
( bottom). The left images show the
integrated power between 2.3-4.3 mHz (5 min range)
and the right ones between 5.5-7.5 mHz (2-3 min range).
The white contours show the location of h = 500 km
where plasma ![]() |
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