- Conference date: 20–23 October 2008
- Location: Huntsville (Alabama)
A detailed joint analysis of BATSE‐LAD and EGRET‐TASC data yielded to the discovery of an anomalous MeV‐component in the spectra of GRB941017. The detailed description and time evolution, as well as the lack of other GRBs with the MeV‐component have made difficult the description of such MeV‐component. Previous analyses by Kaneko  and Gonzalez [3, 4], showed that the spectrum of GRB980923 beyond 10 MeV is not consistent with a smooth continuation of the spectra at keV‐energies along the whole burst. We have deeply analyzed GRB980923 and found the presence of a MeV‐component with similar spectral features to the one found in GRB941017. In this work we compare GRB941017 and GRB980923.
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