Unbound Close Stellar Encounters in the Solar Neighborhood

  title={Unbound Close Stellar Encounters in the Solar Neighborhood},
  author={Brad Hansen},
  journal={The Astronomical Journal},
  • B. Hansen
  • Published 1 December 2021
  • Physics, Geology
  • The Astronomical Journal
We present a catalog of unbound stellar pairs, within 100 pc of the Sun, that are undergoing close, hyperbolic, encounters. The data are drawn from the GAIA EDR3 catalog, and the limiting factors are errors in the radial distance and unknown velocities along the line of sight. Such stellar pairs have been suggested to be possible events associated with the migration of technological civilizations between stars. As such, this sample may represent a finite set of targets for a SETI search based… 
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