文章基本信息

标题：Collisional evolution and the resulting mass distribution of interplanetary dust
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作者：Hiroshi Ishimoto
期刊名称：Earth, Planets and Space
电子版ISSN：1880-5981
出版年度：2014
卷号：50
期号：6
页码：521-529
DOI：10.1186/BF03352144
出版社：Springer Verlag
摘要：On the basis of numerical approaches for the collisional and orbital evolution of dust particles, the number density distribution of interplanetary dust with the mass range of m ≥ 10 −12 g is investigated. The slope of the mass distribution of dust particles strongly depends on the radial dependence of dust production by their parent bodies, and the collisional interaction between particles. Specifically, the m −7/3 dependence of the number density distribution at 1 AU for m ≥ 10 −6 g can be explained through the balance between the collisional loss of particles and the dust supply, whereas the m −4/3 dependence for 10 −12 g ≤ m ≥ 10 −6 g particles is derived from simple Poynting-Robertson orbital decay. A possible model of the dust populations of asteroidal, cometary, and Edgeworth-Kuiper belt origin that is consistent with the observed dust flux at a solar distance of 1 AU is presented.