论文标题
重力聚焦对流媒体暗物质的效果作为新的检测概念
Gravitational focusing effects on streaming dark matter as a new detection concept
论文作者
论文摘要
冷暗物质（DM）的宇宙学模拟表明我们的银河系中可能存在大量流。目前的工作结合了引力焦点（GF）对太阳的流媒体DM成分的影响，而地球则在与地球结合探测器相遇之前。对于流式DM，GF产生了高于名义DM密度的数量级的时空通量增强。值得注意的是，由于地球旋转，衍生的通量增强功能似乎是瞬态信号，持续约10秒钟，每天重复几天或几周。这项工作为DM信号检测和识别提供了新的机会，并且可以将目前的模拟应用于进入太阳系的任何形式的无形物质。
Cosmological simulations for cold dark matter (DM) indicate that a large number of streams might exist in our Galaxy. The present work incorporates gravitational focusing (GF) effects on streaming DM constituents by the Sun and the Earth preceding their encounter with Earth bound detectors. For streaming DM, the GF gives rise to spatiotemporal flux enhancements of orders of magnitude above the nominal DM density. Remarkably, due to Earth's rotation the derived flux enhancements appear as transient signals lasting about 10 seconds repeating daily for days or weeks. This work presents a novel opportunity for DM signal detection and identification, and the present simulation can be applied to any kind of invisible matter entering the solar system.
