论文标题

地月重力对天气范围加速度噪声的影响

Effect of Earth-Moon's gravity on TianQin's range acceleration noise

论文作者

Zhang, Xuefeng, Luo, Chengjian, Jiao, Lei, Ye, Bobing, Yuan, Huimin, Cai, Lin, Gu, Defeng, Mei, Jianwei, Luo, Jun

论文摘要

天气是使用圆形高地球轨道的提议的空间重力检测任务。地理概念提出了有关地月系统附近重力场对高度敏感的卫​​生间范围测量值的干扰作用的问题。在这里,我们通过具有详细的重力场模型的高精度数值轨道模拟来检查问题。通过评估遥远的自由落体测试质量之间的范围加速度,研究表明,大部分地球的重力干扰不在tianqin的检测频带$ 10^{-4} $ Hz中,因此没有给任务带来表演。

TianQin is a proposed space gravitational-wave detection mission using circular high Earth orbits. The geocentric concept has raised questions about the disturbing effect of the nearby gravity field of the Earth-Moon system on the highly-sensitive intersatellite ranging measurements. Here we examine the issue through high precision numerical orbit simulation with detailed gravity-field models. By evaluating range accelerations between distant free-falling test masses, the study shows that the majority of the Earth-Moon's gravity disturbances are not in TianQin's detection frequency band above $10^{-4}$ Hz, and hence present no showstoppers to the mission.

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