Stellar Encounters with the β Pictoris Planetesimal System

@article{Kalas2001StellarEW,
  title={Stellar Encounters with the β Pictoris Planetesimal System},
  author={P. Kalas and Jean-Marc Deltorn and J. Larwood},
  journal={The Astrophysical Journal},
  year={2001},
  volume={553},
  pages={410-420}
}
  • P. Kalas, Jean-Marc Deltorn, J. Larwood
  • Published 2001
  • Physics
  • The Astrophysical Journal
  • We use data from the Hipparcos catalog and the Barbier-Brossat & Figon catalog of stellar radial velocities to test the hypothesis that the b Pic planetesimal disk was disrupted by a close stellar encoun- ter. We trace the space motions of 21,497 stars and discover 18 that have passed within 5 pc of b Pic in the past 1 Myr. b Pics closest encounter is with the K2 III star HIP 27628 (D0.6 pc), but dynamically the most important encounter is with the F7 V star HIP 23693 (D0.9 pc). We calculate… CONTINUE READING
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