GRB 130427A was the most luminous gamma-ray burst detected in the last 30 years.\nWith an isotropic energy output of 8.5Ã?â??1053 erg and redshift of 0.34, it combined very high energetics\nwith a relative proximity to Earth in an unprecedented way. Sensitive X-ray observatories such as\nXMM-Newton and Chandra have detected the afterglow of this event for a record-breaking baseline\nlonger than 80 million seconds. The light curve displays a simple power-law over more than three\ndecades in time. In this presentation, we explore the consequences of this result for a few models put\nforward so far to interpret GRB 130427A, and more in general the implication of this outcome in the\ncontext of the standard forward shock model.
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