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Fig. 6


Change in α between different LETs. The S/N temporal selections in GRB 090102 and GRB 090902B are presented in a) and c). The spectral parameter α is presented with 2σ error bars in b) and d) for LET values from 15 keV to 50 keV. α is consistent at the 2σ level as the LET is varied for the time interval selected in GRB 090102 and is not consistent for the time interval in GRB 090902B.

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