Capture of the Sun's Oort Cloud from Stars in Its Birth Cluster

@article{Levison2010CaptureOT,
  title={Capture of the Sun's Oort Cloud from Stars in Its Birth Cluster},
  author={Harold F. Levison and Martin J. Duncan and Ramon Brasser and David E. Kaufmann},
  journal={Science},
  year={2010},
  volume={329},
  pages={187 - 190}
}
Out of the Oort Cloud Long-period comets originate from the Oort cloud, a vast reservoir of icy bodies that surrounds the solar system. These bodies are thought to be remnants from the formation of the solar system. But did they all form in the Sun's protoplanetary disk, or could they have been generated in the protoplanetary disks of other stars in the cluster where the Sun probably formed? Levison et al. (p. 187, published online 10 June) used detailed numerical simulations to investigate… 
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