4 Scientific results

GRBM spectral analysis was performed on several GRB events. In Fig. 2 we report, as an example, the spectral evolution of GRB970111 obtained using the LS3 2-channels response matrix. Broad band (1.5-700 keV) spectral evolution and average spectral study have been performed by jointly fitting WFC and GRBM data. We mention here the interesting results obtained for GRB 960720 (Piro et al. 1997), GRB 970228 (Frontera et al. 1998), and the comparative analysis reported in Frontera et al. (1999).