E. Sonbas, G. A. MacLachlan, A. Shenoy, K. S. Dhuga, W. C. Parke
From a sample of GRBs detected by the Fermi and Swift missions, we have extracted the minimum variability time scales for temporal structures in the light curves associated with the prompt emission and X-ray flares. A comparison of this variability time scale with pulse parameters such as rise times, extracted via pulse-fitting procedures, indicates a tight correlation between these two temporal properties for both the X-ray flares and the prompt emission. This correlation suggests a common origin for the production of X-ray flares and the prompt emission in GRBs.
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http://arxiv.org/abs/1210.6850
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