Achromatic Breaks for Swift GRBs: Any Evidence?
S. Covino, D. Malesani, G. Tagliaferri, S. D. Vergani, G. Chincarini, D. A. Kann, A. Moretti, L. Stella
Abstract
The availability of multi-wavelength high-quality data of gamma-ray burst afterglows in the Swift era, contrary to the expectations, did not allow us to fully confirm yet one of the most fundamental features of the standard afterglow picture: the presence of an achromatic break in the decaying light curve. We briefly review the most interesting cases identified so far.
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