1 Highlights 2 Sun Close-Encounter Model of Long-Period Comet and Meteoroid Orbit Stochastic Evolu- 3 tion 4 Stuart Pilorz,Peter Jenniskens 5 • A long period comet mostly orbits the solar system barycenter except inside Jupiter’s orbit where it orbits the 6...
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1 Highlights 2 Sun Close-Encounter Model of Long-Period Comet and Meteoroid Orbit Stochastic Evolu- 3 tion 4 Stuart Pilorz,Peter Jenniskens 5 • A long period comet mostly orbits the solar system barycenter except inside Jupiter’s orbit where it orbits the 6 Sun. 7 • Perturbations to a long period comet’s orbit are explained by a two-body close-encounter with the Sun as it orbits 8 the solar system barycenter. 9 • The long period evolution is a Markovian random walk resulting from random sampling of the Sun’s state at 10 encounter. 11 • Meteoroid streams disperse predominantly from stochastic changes in energy and angular momentum experi- 12 enced during Sun close encounter
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