Upperpanel: energy scaling of the pulse FWHM of the bursts in the pointings G-1 (green squares), G-2a (black circles), and G-2b (orange diamonds). Error bars of the G-2a data set are smaller than the symbols. Power law best fits for all data sets are given by dashed lines, while the broken power-law best fits for G-2a and G-2b data are given by dash-dotted lines. Lower panel: HXD plotted as a function of energy for the G-1 and G-2a data set; the mean recurrence times of the bursts are reported. Colour codes are as in the upper panel. The dashed lines are quadratic best fits.