Are There Many Inactive Jupiter-Family Comets among the Near-Earth Asteroid Population?

  title={Are There Many Inactive Jupiter-Family Comets among the Near-Earth Asteroid Population?},
  author={Julio A. Fern{\'a}ndez and Tabar{\'e} Gallardo and Adrian Brunini},
Abstract We analyze the dynamical evolution of Jupiter-family (JF) comets and near-Earth asteroids (NEAs) with aphelion distances Q >3.5 AU, paying special attention to the problem of mixing of both populations, such that inactive comets may be disguised as NEAs. From numerical integrations for 2×10 6 years we find that the half lifetime (where the lifetime is defined against hyperbolic ejection or collision with the Sun or the planets) of near-Earth JF comets (perihelion distances q 5 years… 
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