An Analysis of Average Pulsar Profiles and A Study of the ρ-P relation of Pulsars

摘要

Using the method of Gaussian Fit Separation of Average Profile (GF-SAP), we re-examine the average profiles of nine pulsars at several frequencies, ranging from 408-1642 MHz. This method enables us to obtain the number of components for each pulsar, and the parameters for each component, the width, position and amplitude. The ρ-P relation for the inner cone and outer cone are studied separately, and the results are, respectively, ρ = P~(-0.51 +- 0.05) ρ=P~(-0.42 +- 0.06). The results can be interpreted as a confirmation of the double-cone structure of pulsar emission beams. The altitudes of emission region, and the radius-to-frequency-map (RFM) are also examined; for the outer cone, we obtained r(ν) ∝ν~(-0.19 +- 0.09).