Swift observations of GRB 060614: an anomalous burst with a well behaved afterglow

Understand

GRB 060614 is a remarkable GRB observed by Swift with puzzling properties, which challenge current progenitor models.

• The lack of any bright SN down to very strict limits and the vanishing spectral lags are typical of short GRBs, strikingly at odds with the long (102s) duration of this event.
• Here we present spectral and temporal analysis of the Swift observations.
• We show that the burst presents standard optical, UV and X-ray afterglows.