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Fig. 3


Three reference cases: dependence of the pulse shape on energy. Top: pulse width as a function of energy. Bottom: position of the pulse maximum in channel i with respect to the lowest considered energy band, 2050 keV (BATSE channel 1). Dashed lines show the energy bands for which the light curves were calculated. The first 4 energy bands correspond to the same 4 BATSE channels as used in Fig. 1. The shaded regions indicate the spectral coverage of Fermi GBM and LAT detectors. Black dots correspond to reference case A, red crosses to case B, and blue square symbols to case C.

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