Gamma ray pulsar luminosities

We apply a likelihood analysis to pulsar detections, pulsar upper limits, and diffuse background measurements from OSSE and EGRET to constrain the γ-ray pulsar luminosity law. We find a steeper dependence on period and magnetic field at OSSE than at EGRET energies. We also find that pulsars may be an important component of the OSSE diffuse flux, but are most likely not important at EGRET energies. We estimate that as many as half of the 170 unidentified EGRET sources may be γ-ray pulsars. Furthermore, we predict that GLAST will detect roughly 1000 γ-ray pulsars, only 100 of which are currently known radio pulsars.