Fig. 4
The Hα line-centre intensity (in MSDP signal intensity units) plotted along cross-sections D (solid line), L (dashed line), and P (dot-dashed line) indicated in Fig. 3. Circles indicate points D2 and L2 representing the position of the chromospheric limb. Points D1, D3 and L1, L3 represent the y-direction distance of ± 5 arcsec from D2 and L2, respectively.
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