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Rodney W. Lessard (Purdue University), Whipple Collaboration
We present the results of the search for pulsed TeV emission from the Crab Pulsar using the Whipple Observatory's 10m gamma-ray telescope. The Crab pulsar was observed for a total of 73.4 hours between November 1994, to March 1997. Several times during this period the 10m reflector was operated with a photometer at its focus. The signal from the photometer was run through the telescope electronics and timing system as a check of the fidelity of the instrument's timing characteristics. The phase analysis of the event arrival times yielded a clear detection of the optical Crab Pulsar. During the period of gamma-ray observations the Whipple 10m telescope was operated at its lowest energy threshold to date. Spectral analysis techniques have been applied to search for the gamma-ray Crab Pulsar signal over the energy band of the instrument (250 GeV - 10 TeV). The 33 ms pulsations from the Crab Pulsar were not detected. The 99.9 upper limit for pulsed emission will be given.
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