Asteroidal collision probabilities
Asteroidal collision probabilities
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小行星碰撞概率
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
R. Greenberg
中科院分区：
文献类型：
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作者：
W. Bottke;R. Greenberg
过去对独立轨道上的物体对之间的碰撞概率的几次计算得出了不一致的结果。我们回顾这些方法并找出它们的各种问题。 Greenberg (1982) 的碰撞概率形式主义（现在具有修正的对称性假设）与 Wetherill (1967) 的方法等效，只是它包括一种避免近拱点奇点的方法。该方法表明，Namiki 和 Binzel (1991) 的程序对于那些没有出现奇点的情况是准确的。
Several past calculations of collision probabilities between pairs of bodies on independent orbits have yielded inconsistent results. We review the methodologies and identify their various problems. Greenberg's (1982) collision probability formalism (now with a corrected symmetry assumption) is equivalent to Wetherill's (1967) approach, except that it includes a way to avoid singularities near apsides. That method shows that the procedure by Namiki and Binzel (1991) was accurate for those cases where singularities did not arise.