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

Using the method of Gaussian Fit Separation of Average Profile (GFSAP), 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 and 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(y) ∝ v-0.19±0.09.

作 者： Hua-Xiang Wang Xin-Ji Wu   作者單位： Urumqi Astronomical Station, National Astronomical Observation, Urumqi 830011 CAS-PKU Joint Beijing Astrophysics Center, Beijing 100871  刊 名： 天體物理學(xué)報(英文版)  ISTIC SCI 英文刊名： CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS  年，卷(期)： 2003 3(5)  分類號： P14  關(guān)鍵詞： stars: pulsar: general- line: profiles  

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