Occurrence of Earth-Like Bodies in Planetary Systems

@article{Wetherill1991OccurrenceOE,
  title={Occurrence of Earth-Like Bodies in Planetary Systems},
  author={George W. Wetherill},
  journal={Science},
  year={1991},
  volume={253},
  pages={535 - 538}
}
Present theories of terrestrial planet formation predict the rapid ``runaway formation'' of planetary embryos. The sizes of the embryos increase with heliocentric distance. These embryos then merge to form planets. In earlier Monte Carlo simulations of the merger of these embryos it was assumed that embryos did not form in the asteroid belt, but this assumption may not be valid. Simulations in which runaways were allowed to form in the asteroid belt show that, although the initial distributions… 

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