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Fig. 2

image

a) Lyα (blue) and SXR (black) emission and their derivatives (cyan and grey, respectively) during the 15 February 2011 flare. b) LyC lightcurve for the same event (black). Overplotted in cyan is the time derivative of the Lyα lightcurve normalized to LyC. c) Lightcurve of Lyβ (1026 Å; black curve). Overplotted in cyan is the time derivative of the Lyα lightcurve normalized to Lyβ. d) Lightcurve of C III (977 Å; black curve). Overplotted in cyan is the time derivative of the Lyα lightcurve normalized to C III. The vertical dotted and dashed lines in each panel mark the start and peak times of the GOES event, respectively.

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