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arXiv 1108.3740astro-ph.EPastro-ph.IM
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高倾角小行星家族

Families among high-inclination asteroids

Bojan Novakovic, Alberto Cellino, Zoran Knezevic

摘要:

我们提出了一个新的分类家庭之间的人口确定的高倾角小行星。我们计算了18,560个编号和多反对派对象的样本的合成适当元素,这些对象的正弦值大于0.295。我们认为在不同的日心距离(内部,中间和外部区域)的三个区域,并使用基于层次聚类方法(HCM)的标准方法来确定每个区域中的家庭。在这样做时,我们使用了与以前公布的方法略有不同的方法,以实现更可靠和更强大的分类。我们还使用可用的SDSS颜色数据来提高成员资格,并确定可能的家庭闯入者。我们共发现了38个家族,以及大量值得进一步研究的丛和簇。

英文摘要:

We present a new classification of families identified among the population of high-inclination asteroids. We computed synthetic proper elements for a sample of 18,560 numbered and multi-opposition objects having sine of proper inclination greater than 0.295. We considered three zones at different heliocentric distances (inner, intermediate and outer region) and used the standard approach based on the Hierarchical Clustering Method (HCM) to identify families in each zone. In doing so, we used slightly different approach with respect to previously published methodologies, to achieve a more reliable and robust classification. We also used available SDSS color data to improve membership and identify likely family interlopers. We found a total of 38 families, as well as a significant number of clumps and clusters deserving further investigation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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