ar X iv : a st ro - p h / 02 11 22 4 v 1 1 1 N ov 2 00 2 Is the afterglow of Gamma Ray Burst 021004 unusual ?


The bumpy light-curve of the bright optical afterglow (AG) of gamma ray burst (GRB) 021004, its spectral evolution and its radio emission have been claimed to be unusual. In the Cannonball Model of GRBs that is not the case. The very early AG's shape is, as for GRB 990123, a direct tracer of the expected circumburst density profile. The unprecedented… (More)


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