Gamma-Ray Emission from Fast Pulsars

It is suggested that many, perhaps all, of the heretofore unidentified COS-B gamma-ray sources are fast pulsars. If the incoherent synchrotron emission mechanism at the speed-of-light cylinder is effective up to gamma-ray energies (≅100 MeV), then a population of old (>10⁶years), weak magnetic field (B < 10¹⁰gauss), high angular velocity (ω > 10³sec^-1) pulsars may account for a number of properties of these sources.