Origin of Interstellar Object A/2017 U1 in a Nearby Young Stellar Association?

  title={Origin of Interstellar Object A/2017 U1 in a Nearby Young Stellar Association?},
  author={E. Gaidos and J. G. Williams and A. Kraus},
  journal={arXiv: Earth and Planetary Astrophysics},
  • E. Gaidos, J. G. Williams, A. Kraus
  • Published 2017
  • Physics
  • arXiv: Earth and Planetary Astrophysics
  • We suggest that the kinematics and properties of interstellar object A/2017 U1 point towards its formation in a protoplanetary disk in the ~45 Myr-old Carina or Columba young stellar associations, and subsequent ejection with a low peculiar velocity (1-2 km/sec) during or soon after planet formation inside the ice line. This scenario predicts that the Solar System will encounter more such objects with radiants similar to that of A/2017 U1. 

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