Fig. 1.
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Quiet-Sun corona observed with HRIEUV on 2021 February 23. The map is obtained by averaging emission from all the frames in the level-2 image sequence. The field of view is about 384 Mm × 384 Mm. Three boxes labelled A–C mark quiescent regions that exhibited jet activities further discussed in Figs. 2–5. Each box covers a field of view of roughly 19 Mm × 19 Mm.
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