关于太阳系暗物质捕获的近期工作评述
Comments on recent work on dark-matter capture in the Solar System
摘要：
最近，出现了几篇论文，研究了从银河系晕捕获暗物质粒子到太阳系轨道的过程。这些论文的作者预测，通过与行星的引力三体相互作用，局部暗物质密度会大幅增强。然而，这些结论是错误的;这些论文没有包括捕获的逆过程，即通过三体引力相遇喷射暗物质粒子。我们强调以前的工作表明，包括捕获和喷射的暗物质从太阳系，暗物质的密度绑定到太阳系是小的本地银河系的暗物质密度相比。
英文摘要：
Recently, several papers have appeared that examine the process of capturing dark-matter particles from the Galactic halo to orbits bound to the Solar System. The authors of these papers predict large enhancements to the local dark-matter density via gravitational three-body interactions with planets. However, these conclusions are wrong; these papers do not include the inverse process to capture, namely the ejection of dark-matter particles by three-body gravitational encounters. We emphasize previous work that shows that by including both capture and ejection of dark matter from the Solar System, the density of dark matter bound to the Solar System is small compared to the local Galactic dark-matter density.
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