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Abstract: Many authors have predicted very-high-energy VHE; E > 100 GeV emission fromgamma-ray bursts GRBs both during the prompt phase and during themulti-component afterglow. To date, however, there has been no definitivedetection of such emission. Recently, the Swift Satellite made the excitingdiscovery that almost 50% of GRBs are accompanied by one or more X-ray flares,which are found to occur from several seconds to many hours after the promptemission. The discovery of this phenomenon and the many predictions that VHEemission should accompany these flares increases the already strong motivationfor making immediate follow-up VHE observations of GRBs. Observations of GRBshave high priority at VERITAS, preempting any observations that may be inprogress. GRB alerts are received from the GCN via a socket connection. This isinterfaced to the VERITAS Tracking Software to minimize the time between anotification arriving and the telescope being slewed to the GRB. We report hereon GRB observations with VERITAS and with the Whipple Telescope from 2005through 2007.



Autor: D. Horan, for the VERITAS Collaboration

Fuente: https://arxiv.org/







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