Searching for stars closely encountering with the solar system

  title={Searching for stars closely encountering with the solar system},
  author={Vadim V. Bobylev},
  journal={Astronomy Letters},
  • V. Bobylev
  • Published 10 March 2010
  • Physics, Geology
  • Astronomy Letters
Based on a new version of the Hipparcos catalog and currently available radial velocity data, we have searched for stars that either have encountered or will encounter the solar neighborhood within less than 3 pc in the time interval from −2 Myr to +2 Myr. Nine new candidates within 30 pc of the Sun have been found. To construct the stellar orbits relative to the solar orbit, we have used the epicyclic approximation. We show that, given the errors in the observational data, the probability that… 

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