脉冲星观测中的日月岁差效应  

Effect on Pulsar Observations of the Lunisolar Precession

作　　者：刘昊[1] 萧耐园[1] 

机构地区：[1]南京大学天文系,南京210093

出　　处：《天文学报》2009年第1期37-44,共8页Acta Astronomica Sinica

基　　金：国家自然科学基金(10133010)资助项目

摘　　要：脉冲星周期和周期变率的测量中存在着日月岁差效应.通过对日月岁差效应的分析,发现它已经影响到了某些脉冲星的周期的精密测量.在对1771颗脉冲星测量周期的分析和检测中,有81颗脉冲星的测量周期在它们的测量精度范围内受到日月岁差效应的影响.随着观测精度的提高,在以后的脉冲星周期和周期变率的精密测量中,这些影响应该得到相应的改正.There is an effect of lunisolar precession on the measures of the period and period change rate of pulsars. The effect of lunisolar precession is analyzed in this paper.It is found that the lunisolar precession affects the exact measures of P of pulsars. The data of measured period of 1771 pulsars have been analyzed and detected, and 81 of them were influenced by the effect of lunisolar precession in their period measurement precision. Some necessary modifications of this exterior factor must be made to the exact measures of pulsars＇ P and 15 accompanying the continuous improvement of observational precision.

关 键 词：脉冲星 普通 天体测量学 方法 分析 

分 类 号：P126[天文地球—天体测量]