Abstract
Ten pulsars were observed for pulsed emission of gamma rays at energies greater than 500 GeV, using an atmospheric Cerenkov emission technique. Signals at the levels of 3.85 and 3.56 sigmas were detected from PSR 0950+08 and PSR 0531+21 (Crab pulsar), respectively. If the signal from the Crab pulsar is attributed to the main pulse, a further 2.2-sigma signal is found in the same data, precisely at the place predicted for interpulse by the observations on low-energy gamma rays from COS-B satellite. The statistical significance of the results is discussed.
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