Properties and Interactions of Interplanetary Dust
Properties and Interactions of Interplanetary Dust
复制标题
行星际尘埃的性质和相互作用
DOI：
10.1007/978-94-009-5464-9
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
P. Lamy
中科院分区：
文献类型：
--
作者：
R. Giese;P. Lamy
行星际尘埃云研究的特点是来自不同的方法和领域，如对黄道光、流星、微流星体、小行星和彗星的研究。自从地球环境和行星际空间成为空间飞行器可以进入的空间以来，这些相互关系是十分明显和极为有用的。例如，微流星体探测器的空间测量提供了撞击事件的个别和最终的详细资料，但这些资料的数量有限，因此在统计意义上受到限制。另一方面，黄道光测量涉及许多粒子的散射光，因此提供了关于行星际颗粒物理性质和空间分布平均值的全球信息。更多的知识来自月球样本以及大气和深海沉积物中的尘埃收集。所有这些来源的补充信息必须放在一起，形成一个综合的综合。这还必须考虑动力学方面和小颗粒物理性质的实验室研究结果。如此巨大的努力不仅仅是少数对太阳尘埃云感兴趣的专家的学术活动。由于同样的云只允许直接在现场调查各种大小和材料的地外尘埃粒子，它为现实处理其他遥远宇宙区域的尘埃现象提供了有价值的信息，如密集的分子云，星周尘埃壳，甚至是原恒星或原行星系统。
Investigation of the interplanetary dust cloud is characterized by contributions from quite different methods and fields, such as research on zodiacal light, meteors, micrometeoroids, asteroids, and comets. Since the earth's environment and interplanetary space became accessible to space vehicles these interrelations are clearly evident and extremely useful. Space measurements by micrometeoroid detectors, for example, provide individual and eventually detailed information on impact events, which however are limited in number and therefore restricted in statistical significance. On the other hand, zodiacal light measurements involve scattered light from many particles and therefore provide global information about the average values of physical properties and spatial distribution of interplanetary grains. Additional knowledge stems from lunar samples and from dust collections in the atmosphere and in deep sea sediments. All these sources of complementary information must be put together into a synoptical synthesis. This also has to take into account dynamical aspects and the results of laboratory investigations concerning physical properties of small grains. Such considerable effort is not merely an academic exercise for a few specialists interested in the solar dust cloud. Since this same cloud exclusively allows direct in-situ acess to investigate extraterrestrial dust particles over a wide range of sizes and materials, it provides valuable information for realistic treatment of dust phenomena in other remote cosmic regions such as in dense molecular clouds, circumstellar dust shells, and even protostellar or protoplanetary systems.