Fig. A.1
Time series of normalised flux of analysed activity indicators to evidence the flare. MJD0 = 53758.244, time of the first observation obtained in 2006. The inset shows the zoom of the time series during the flares. Shown is the delay onthe flare event in the Ca II H and K lines and in He I at 4026 Å. Also shown are the pre-flare dips on the time series of these indicators.
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