Near-parabolic comets observed in 2006–2010. The individualized approach to 1/a-determination and the new distribution of original and future orbits

  title={Near-parabolic comets observed in 2006–2010. The individualized approach to 1/a-determination and the new distribution of original and future orbits},
  author={Małgorzata Kr{\'o}likowska and Piotr A. Dybczyński},
  journal={Monthly Notices of the Royal Astronomical Society},
Dynamics of a complete sample of 22 small perihelion distance near-parabolic comets discovered in the years 2006 - 2010 is studied. First, osculating orbits are obtained after a careful positional data inspection and processing, including where appropriate, the method of data partitioning for determination of pre- and post-perihelion orbit for tracking then its dynamical evolution. The nongravitational acceleration in the motion is detected for 50 per cent of investigated comets, in a few… 
Near-parabolic comets observed in 2006–2010 – II. Their past and future motion under the influence of the Galaxy field and known nearby stars
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Non-gravitational effects change the original 1/a-distribution of near-parabolic comets
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