L_bol light curve during Phase2. The y-axis scales have been defined in the caption of Fig. 12. The first three data points are from the final decay of Phase1 and we also show the best-fitting decay model until Phase2 begins. A simple model comprising a Gaussian rise and a power law decay with t^−9/4 for Phase2 is shown as a solid blue line, together with a Gaussian X-ray flare precursor (red dotted line).