Close encounters of the stellar kind

@article{BailerJones2014CloseEO,
  title={Close encounters of the stellar kind},
  author={C. Bailer-Jones},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2014}
}
  • C. Bailer-Jones
  • Published 2014
  • Physics
  • arXiv: Solar and Stellar Astrophysics
  • Stars which pass close to the Sun can perturb the Oort cloud, injecting comets into the inner solar system where they may collide with the Earth. Using van Leeuwen's re-reduction of the Hipparcos data complemented by the original Hipparcos and Tycho-2 catalogues, along with recent radial velocity surveys, I integrate the orbits of over 50 000 stars through the Galaxy to look for close encounters. The search uses a Monte Carlo simulation over the covariance of the data in order to properly… CONTINUE READING
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