论文标题
通过外层次源位置时间序列评估ICRF3轴稳定性
Evaluate the ICRF3 axes stability via extragalactic source position time series
论文作者
论文摘要
我们介绍了一项最新的研究，以根据线性漂移和散射，根据档案外的源位置时间序列序列，评估第三代国际天体参考框架（ICRF3）的轴稳定性，该档案的基线分析非常长的基线干涉观察结果。我们的结果表明，ICRF3的轴稳定在10至20微秒的电弧水平上，当包括新网络的观测值时，在采用ICRF3后，它不会降低。我们还表明，得出位置时间序列（四步解）的常用方法是稳健的。
We present an updated study on assessing the axes stability of the third generation of the International Celestial Reference Frame (ICRF3) in terms of linear drift and scatter based on the extragalactic source position time series from analyses of archival very long baseline interferometry observations. Our results show that the axes of the ICRF3 are stable at a level of 10 to 20 microseconds of arc, and it does not degrade after the adoption of the ICRF3 when observations from new networks are included. We also show that the commonly used method of deriving the position time series (four-step solution) is robust.
