The XMM-Newton observation of GRB 040106 : evidence for an afterglow in a wind environment
B. Gendre, L. Piro, M. De Pasquale
Abstract
We present the XMM-Newton observation of GRB 040106. From the X-ray spectral index and temporal decay, we argue that the afterglow is consistent with a fireball expanding in a wind environment. A constant density environment is excluded by the data. This is one of the very few cases in which this conclusion can be drawn.
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