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Fig. 4


T90,rest distribution of 4 short (red hatched histogram) and 28 long (blue histogram) GBM GRBs in the redshift corrected energy interval from 50 keV to 300 keV. The log-normal fit to the distribution (dashed line) of the long bursts peaks at  ~ 12 s and has a FWHM = 1.1 in log-space.

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