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02 November 2024
 
  » arxiv » 0707.4515

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The Formation of the Oort Cloud in Open Cluster Environments
Nathan A. Kaib ; Thomas Quinn ;
Date 1 Aug 2007
AbstractWe study the influence of the initial stellar environment on the formation and current structure of the Oort cloud. To do this, we have run four different simulations of the formation of the Oort Cloud for 4.5 Gyrs, each containing 20,000 particles. In each simulation, the solar system spends its first 100 Myrs in a different open cluster environment before transitioning to its current field environment. We find that, compared to forming in the field environment, the inner Oort Cloud is preferentially loaded with comets while the Sun resides in the open cluster and that most of this material remains locked in the interior of the cloud for the next 4.4 Gyrs. On the other hand, the outer portions of the Oort Cloud in each of the simulations are all similar. Depending on the initial stellar density of the cluster environment, the internal structure of the present day Oort Cloud will vary widely.
Source arXiv, 0707.4515
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