摘要
概述了X射线脉冲星可见性分析需要考虑的影响因素,给出了脉冲星高度角以及第三天体遮挡的计算公式。根据导航需要,按照脉冲星优选准则,选取50颗X射线脉冲星进行了仿真计算。分析了可见脉冲星个数随位置、时间、高度的变化规律,单颗脉冲星在1 d时间内可见性的变化情况,以及日月对脉冲星的遮挡情况。
The influent factors, which should be considered in the analysis of X-ray pulsar visibility,were summarized. The calculation formulas of pulsar elevation angle and the shelter from the three-body were also presented. According to the requirement of navigation, firty X-ray pulsars were selected based on the rules of pulsar selection. The change of visible pulsar number with position, time, height were analyzed through calculations. The change of visibility of a single pulsar in a single day and the shelter from sun and moon were studied. Finally, conclusion is drawn.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2009年第2期222-225,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40604003)
关键词
X射线脉冲星
银道坐标系
可见性
X-ray pulsar
galactic coordinate system
visibility
