Fermi γ-Ray Pulsars: Spectral and Generation Order Parameters  

作　　者：CAI Yan A.Taani WANG Wei ZHAO Yong-Heng ZHANG Cheng-Min 蔡炎;A.Taani;王伟;赵永恒;张承民(National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012)

机构地区：[1]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012

出　　处：《Chinese Physics Letters》2011年第8期356-359,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant Nos 10975046 and 10773017;the National Basic Research Program of China(2009CB824800).

摘　　要：We examine the theory of generation order parameters.Three kinds of generation order parameters are introduced,which describe the production of high-energyγphotons in a cascade process scenario.We find a correlation between the average power−law photon indexΓand spin−down rate.P in 38 common FERMIγ−ray pulsars,and find that the third generation order parameter,which implies that the magnetic field may have the most significant effect on the high-energyγphoton absorption in the cascade processes,is the best one.The statistical work shows that the theory of generation order parameters can be applied to describe the theγ-ray pulsar radiation mechanisms in the cascade processes.

关 键 词：SCENARIO FERMI THEORY 

分 类 号：P14[天文地球—天体物理]