论文标题
为什么在非牛顿重力测试中不使用时代的平均异常？
Why the mean anomaly at epoch is not used in tests of non-Newtonian gravity?
论文作者
论文摘要
时期$η$的平均异常是标准的六个开普勒轨道元素之一，即两体问题的运动被参数化。除了折缘$ω$的论点外，$η$经历了长期的变化率，除其他外，通过一般相对论和几种修改的重力模型。因此，原则上，可以在牛顿后重力测试中与天文学和天体物理二元系统进行的几项测试中，可以与$ω$一起采用。这将使人们感兴趣的引力签名，并消除某些具有系统偏见来源的竞争令人不安的效果。尽管如此，由于本作者未知的某些原因，天文学家到目前为止从未在实际数据减少中使用$η$。本说明旨在使社区对可能使用这种轨道元素的实际使用，或者至少诱使天文数据处理的专家明确表明，如果无法将$η$用于测试重力模型，以及在这种情况下，为什么，为什么，为什么要明确说明。
The mean anomaly at epoch $η$ is one of the standard six Keplerian orbital elements in terms of which the motion of the two-body problem is parameterized. Along with the argument of pericenter $ω$, $η$ experiences long-term rates of change induced, among other things, by general relativity and several modified models of gravity. Thus, in principle, it may be fruitfully adopted together with $ω$ in several tests of post-Newtonian gravity performed with astronomical and astrophysical binary systems. This would allow to enhance the gravitational signature one is interested in and to disentangle some competing disturbing effects acting as sources of systematic bias. Nonetheless, for some reasons unknown to the present author, $η$ has never been used so far by astronomers in actual data reductions. This note aims to raise interest in the community about the possible practical use of such an orbital element or, at least, to induce experts in astronomical data processing to explicitly make clear if it is not possible to use $η$ for testing gravitational models and, in this case, why.
