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This article has an erratum: [https://doi.org/10.1051/0004-6361/202143010e]


Fig. 1.

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INTEGRAL/ISGRI 20−50 keV and 50−150 keV light curves of GRB 190919B. The vertical lines depict the times of individual flare maxima in the high energy range. The hard energy excess is detected during the second main flare at (t − t0)∼20 s in the 100–200 keV energy range.

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