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Fig. 8.
Temporal evolution of the extended AFS in the chromosphere in selected Hα line-core filtergrams (top) and in NIR Ca II line-core filtergrams (bottom) for a time-series starting at 17:02 UT until 17:58 UT on 2013 January 20. The labels α, β, and γ indicate three individual arch filaments, which are discussed in the text.
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