Quantum-Spacetime Scenarios and Soft Spectral Lags of the Remarkable GRB130427A

<table>Times and energies of detection of GRB130427A photons with energy in excess of 5 GeV, selected within 10 degrees of the GRB130427A optical position. Darker points are for photons observed from within 3 degrees of the GRB130427A optical position.</table>

Advances in High Energy Physics

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Figure 2

Figure 2: Quantum-Spacetime Scenarios and Soft Spectral Lags of the Remarkable GRB130427A 