期刊
ASTRONOMICAL JOURNAL
卷 124, 期 5, 页码 2943-2948出版社
UNIV CHICAGO PRESS
DOI: 10.1086/344077
关键词
minor planets, asteroids; solar system : general
We discuss optical colors of 10,592 asteroids with known orbits selected from a sample of 58,000 moving objects observed by the Sloan Digital Sky Survey. This is more than 10 times larger than any sample that includes both orbital parameters and multiband photometric measurements previously available. We confirm that asteroid dynamical families, defined as clusters in orbital parameter space, also strongly segregate in color space. In particular, we demonstrate that the three major asteroid families (Eos, Koronis, and Themis) together with the Vesta family represent four main asteroid color types. Their distinctive optical colors indicate that the variations in chemical composition within a family are much smaller than the compositional differences between families, and they strongly support earlier suggestions that asteroids belonging to a particular family have a common origin. We estimate that over 90% of asteroids belong to families.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据