1Department of Physics, Yunnan University, Kunming 650031
2Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011
X-Ray Emission from Rotation-Powered Pulsars
LIN Gui-Fang1;ZHANG Li2,1
1Department of Physics, Yunnan University, Kunming 650031
2Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011
Abstract： We study the properties of pulsed component of hard (2--10keV) x-ray emission from pulsars based on the new version of outer gap model we proposed previously [Astrophys. J. 604(2004)317]. On the frame of this outer gap model, we derive an expression of non-thermal pulsed x-ray luminosity of rotation-powered pulsars, and then apply it to the pulsars whose pulsed x-rays are detected by ASCA. Using the Kolmogorov--Smirnov test, we determine the model parameter. The present results indicate LX ∝ L1.15sd for these x-ray pulsars, which is consistent with the observed data.
2005, Vol. 22 
