Detection of pulsed y-rays at energies above 300 GeV from pulsars — T.I.F.R. experiments

Abstract

A brief account is given of the search for y-rays from pulsars made by the T.I.F.R. group in India. It is concluded that for energies above 300 GeV the flux of pulsed y-rays from the Crab and Vela pulsars is much less than would be expected by extrapolation of the spectra measured in the gigaelectronvolt range. It is still not certain whether the pulsars have been detected above 300 GeV because of variability in the apparent signals from year to year.