论文标题
现实的重力聚焦
Realistic gravitational focusing of meteoroid streams
论文作者
论文摘要
由于被称为重力聚焦的现象，在巨大的身体附近增强了流星流的数量密度和通量。最大的增强效果直接发生在流辐射的巨大身体对面：当观察者接近此位置时，对于完全准直的溪流而言，聚焦的程度是未结合的。但是，真实的流星流在辐射和速度上表现出一些分散，可以消除这种奇异性。在本文中，我们得出了这种平滑的分析近似，该分析近似可用于流星环境模型，并基于对流星淋浴辐射分散体的实际测量。
The number density and flux of a meteoroid stream is enhanced near a massive body due to the phenomenon known as gravitational focusing. The greatest enhancement occurs directly opposite the massive body from the stream radiant: as an observer approaches this location, the degree of focusing is unbound for a perfectly collimated stream. However, real meteoroid streams exhibit some dispersion in radiant and speed that will act to eliminate this singularity. In this paper, we derive an analytic approximation for this smoothing that can be used in meteoroid environment models and is based on real measurements of meteor shower radiant dispersion.
