论文标题
一个脉冲星，两个白矮人和一个星球，证实了强大的等价原理
One pulsar, two white dwarfs, and a planet confirming the strong equivalence principle
论文作者
论文摘要
强大的等效原理是一般相对论的基石，在太阳系中以精确的精度进行了测试。但是，在强场状态中的测试需要一个紧凑的对象。目前，PSR J0337+1715是在三重恒星系统中发现的独特毫秒脉冲星，在与地球轨道相当的区域内绕着两个白色矮人绕着。这种配置为对先前测试的巨大改进提供了机会，前提是可以实现PULSAR的准确时机。这也需要开发一个新的计时模型，以极高的准确性在数值上解决相对论的三体问题。我们报告了过去8年中Nan {\ c c} Ay radiotelescope在PSR J0337+1715上收集的高质量数据集的分析。特别是，我将展示如何在强大的野外制度中对强大的等效原则的潜在违反迄今为止最严格的限制。我还将引入初步重新批次，表明系统中的一个小星球的存在可能解释了到目前为止未划分的微小残留信号，如果确认会使该系统变得异常富含。
The strong equivalence principle is a cornerstone of general relativity, tested with exquisite accuracy in the Solar system. However, tests in the strong-field regime require a compact object. Currently, PSR J0337+1715 is the unique millisecond pulsar found in a triple stellar system, orbiting two white dwarfs within an area comparable to the orbit of the Earth. This configuration offers the opportunity for a dramatic improvement over previous tests, provided that accurate and regular timing of the pulsar can be achieved. This also requires the development of a new timing model solving numerically the relativistic three-body problem with great accuracy. We report on the analysis of the high-quality dataset gathered on PSR J0337+1715 by the Nan{\c c}ay radiotelescope over the past 8 years. In particular, I will show how we could obtain the most stringent limit to-date on a potential violation of the strong equivalent principle in the strong field regime. I will also introduce preliminary resuts showing that the presence of a small planet in the system may explain a tiny residual signal so far unaccounted for, which if confirmed would make this system exceptionally rich.
