The 80 Ms follow-up of the X-ray afterglow of GRB 130427A challenges the standard forward shock model

M. De Pasquale, M. J. Page, D. A. Kann +12

GRB 130427A was the brightest gamma-ray burst detected in the last 30 years. With an equivalent isotropic energy output of $8.5\times 10^{53}$ erg and redshift $z=0.34$, it uniquely…