A study on emission geometry and the separation of peaks in the γ-ray pulse profiles of pulsar Original Research Article

In the inner annular gap (IAG) model the γ-ray radiation sources are suggested to be located close to the null charge surface (NCS). A method to explore two geometric parameters (κ, λ) of the IAG model is given in this paper. Pulsar population statistics are proposed to test the radiation locations of γ-ray pulsars. Within the IAG model, predictions for the GLAST observation of γ-ray pulsars are also made.