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arXiv · 1006.4103

Lag-luminosity relation in gamma-ray burst X-ray flares

R. Margutti
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Abstract

In strict analogy to prompt pulses, X-ray flares observed by Swift-XRT in long Gamma-Ray Bursts define a lag-luminosity relation: L_p,iso \propto t_lag^{-0.95+/-0.23}. The lag-luminosity is proven to be a fundamental law extending 5 decades in time and 5 in energy. This is direct evidence that GRB X-ray flares and prompt gamma-ray pulses are produced by the same mechanism.

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R. Margutti. 2010-06-21. Lag-luminosity relation in gamma-ray burst X-ray flares. https://doi.org/10.1063/1.3509315

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