论文标题
野蛮的搜寻九个星球
The Brute-Force Search for Planet Nine
论文作者
论文摘要
最新的提案，从太阳（称为Planet 9）中检测假设引力物体500 AU要求使用配备高精度时钟的近乎偏见的航天器机队，将其发送到一个怀疑是该物体的区域。我们表明，这种任务的技术限制可以在某种程度上放松，同时提高灵敏度：当行星9诱导的横向位移可以通过基于地球或接近地球的望远镜的远程位移时，可以避免高精度的时钟。此外，我们注意到，在没有行星9的情况下，这些航天器仍然通过在太阳系外部绘制重力扰动来产生有用的数据。
A recent proposal for the detection of a hypothetical gravitating body 500 AU from the Sun (termed Planet 9) calls for a fleet of near-relativistic spacecraft, equipped with high-precision clocks, to be sent to a region where the object is suspected to be. We show that the technological constraints of such a mission can be relaxed somewhat, while improving the sensitivity: high-precision clocks can be avoided when the transverse displacement induced by Planet 9 is measurable with Earth-based, or near-Earth, telescopes. Furthermore, we note that in the absence of Planet 9, these spacecraft still yield useful data by mapping gravitational perturbations in the outer parts of the solar system.
