P417 Evidence for early stellar encounters in the orbital distribution of Edgeworth-Kuiper Belt objects

  title={P417 Evidence for early stellar encounters in the orbital distribution of Edgeworth-Kuiper Belt objects},
  author={Shigeru Ida and John D. Larwood and Andreas Burkert},
We have investigated effects of early stellar encounters on a protoplanetary disk (planetesimal disk) and found that they can explain the high eccentricities and inclinations observed in the outer part ($>42$AU) of the Edgeworth-Kuiper Belt (EKB). The proto-sun is considered as a member of a stellar aggregation that undergoes dissolution on a timescale $\sim 10^8$yrs, such that a planetesimal disk experiences a flyby encounter at pericenter distance ($q$) on the order of 100AU. We simulated… Expand
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