论文标题
伽利略项目的一项海洋探险，以检索第一个大型星际流星木炭2014-01-08的碎片
An Ocean Expedition by the Galileo Project to Retrieve Fragments of the First Large Interstellar Meteor CNEOS 2014-01-08
论文作者
论文摘要
最早确认的星际对象`oumuamua是在太阳系在2017年在太阳系中发现的，允许对其大小$ \ sim 100 \; $ m的大量星际对象进行校准。接下来是发现Borisov的，它允许其大小$ \ sim 0.4-1 \ mathrm {\;; km} $。人们会期望明显较小的星际物体的丰度要高得多，其中一些物体经常与地球相撞，以至于很明显。基于Bolide事件的CNEOS目录，我们在2019年确定了2014-01-08 17:05:34 UTC检测到的流星，其源自具有99.999 \％置信度的未结合双曲线轨道。此后，在2022年，美国国防部已验证“向NASA报告的速度估计值足够准确地表明了星际轨迹，”使该对象成为第一个检测到的星际物体，并且是第一个检测到的星际流星。在这里，我们讨论了Cneos 2014-01-08的动力和组成特性，并描述了我们的探险计划，以从海底检索气象碎片。
The earliest confirmed interstellar object, `Oumuamua, was discovered in the Solar System by Pan-STARRS in 2017, allowing for a calibration of the abundance of interstellar objects of its size $\sim 100\;$ m. This was followed by the discovery of Borisov, which allowed for a similar calibration of its size $\sim 0.4 - 1 \mathrm{\; km}$. One would expect a much higher abundance of significantly smaller interstellar objects, with some of them colliding with Earth frequently enough to be noticeable. Based on the CNEOS catalog of bolide events, we identified in 2019 the meteor detected at 2014-01-08 17:05:34 UTC as originating from an unbound hyperbolic orbit with 99.999\% confidence. In 2022, the U.S. Department of Defense has since verified that "the velocity estimate reported to NASA is sufficiently accurate to indicate an interstellar trajectory," making the object the first detected interstellar object and the first detected interstellar meteor. Here, we discuss the dynamical and compositional properties of CNEOS 2014-01-08, and describe our plan for an expedition to retrieve meteoritic fragments from the ocean floor.
