论文标题

小行星 - 气星复合物

Asteroid-Meteoroid Complexes

论文作者

Kasuga, Toshihiro, Jewitt, David

论文摘要

这是对流星及其产生的母体的最新研究概述。尽管许多流星阵雨是由彗星弹出的材料引起的,但在三种最强的年度阵雨(双子座和二足)中,有两个与物理特性显然是小行星的物体相关的物体。在过去的几十年中,动力学和观察性研究证实了许多小行星 - 元体配合物的存在,包括流和几个宏观的分裂片段。流星淋浴的光谱已被用于研究行星际空间中的围绕周围依赖性的热改变。在本章中,我们回顾了复合物的特征,包括一些小流的特征。科学的兴趣是将复合物的物理和动力学特性追溯到进化途径,以了解流星体的生产过程以形成流。我们还讨论了未来十年中现场的开放问题。

This is an overview of recent research on meteors and the parent bodies from which they are produced. While many meteor showers result from material ejected by comets, two out of the three strongest annual showers (the Geminids and the Quadrantids) are associated with objects whose physical properties are apparently those of asteroids. In the last decades dynamical and observational studies have confirmed the existence of a number of Asteroid-Meteoroid Complexes, comprising streams and several macroscopic, split fragments. Spectroscopy of meteor showers has been utilized to investigate the perihelion-dependent thermal alteration while in interplanetary space. In this chapter, we review characteristics of the complexes, including those of some minor streams. The scientific interest is to trace the physical and dynamical properties of the complexes back to the evolutionary pathways to learn about the variety of production processes of meteoroids to form streams. We also discuss open questions in the field for the next decade.

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