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Sculpting the Kuiper Belt by a Stellar Encounter: Constraints from the Oort Cloud and Scattered Disk

机译:通过恒星相遇雕刻柯伊伯带:来自奥尔特云和分散磁盘的约束

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We investigate the effect that a close stellar encounter would have on the growing scattered disk and Oort cloud. Such an encounter has been suggested by Melita et al. as the cause of the Kuiper belt's outer edge. Thus, we restrict our study to encounters that could have caused such a structure. We find that we probably can rule out all such encounters that occurred either at or subsequent to 10 million years after the Oort cloud started to form. In our simulations, these encounters either produce an extended scattered disk that is too populous to be consistent with observations or produce an Oort cloud that is too anemic.
机译:我们研究了恒星相遇对不断增长的散布磁盘和奥尔特云的影响。 Melita等人已经提出了这样的相遇。是导致柯伊伯带外缘的原因。因此,我们将研究限于可能造成这种结构的相遇。我们发现,我们可能可以排除在Oort云开始形成后1000万年或之后发生的所有此类相遇。在我们的模拟中,这些相遇会产生一个扩展的分散盘(其人口过多而无法与观测值保持一致),或者会产生一个太贫的奥尔特云。

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