摘要
Timing analyses of gamma-ray pulsar Geminga were made to check its rotating stability using released energetic gamma-ray experiment(EGRET)data.Phase motions of Geminga were found from EGRET data in 1995.Joint analysis of parameters searching and bootstrap testing showed that the parameters are getting worse when including EGRET data in 1995.Combination of these results may indicate that a small glitch of Geminga occurred in 1995.
作者
ZHANG Shu
LI Ti-pei
WU Mei
张澍;李惕碚;吴枚(Laboratory of Cosmic Ray and High Energy Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039)
基金
Supported by the National Natural Science Foundation of China under Grant No.19673010。
