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Fig. 3
Large filament represented as a mosaic of ten individual slit-reconstructed images centered on Hα + 0.5 Å, Hα line core, Hα−0.5 Å, and Na i D2 line core (top to bottom). We number the maps from left to right (1–10). The labels a–d indicate the locations of the contrast profiles shown in Fig. 5.
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