publication . Article . 2002

Dust Trails of 8P/Tuttle and the Unusual Outbursts of the Ursid Shower

Jenniskens, P.; Lyytinen, E.; de Lignie, M. C.; Johannink, C.; Jobse, K.; Schievink, R.; Langbroek, M.; Koop, M.; Gural, P.; Wilson, M. A.; ...
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  • Published: 08 Oct 2002 Journal: Icarus, volume 159, pages 197-209 (issn: 0019-1035, Copyright policy)
  • Publisher: Elsevier BV
Abstract
We calculate the position of dust trails from comet 8P/Tuttle, in an effort to explain unusual Ursid meteor shower outbursts that were seen when the comet was near aphelion. Comet 8P/Tuttle is a Halley-type comet in a 13.6-year orbit, passing just outside of Earth's orbit. We find that the meteoroids tend to be trapped in the 12:14 mean motion resonance with Jupiter, while the comet librates in a slightly shorter period orbit around the 13:15 resonance. It takes 6 centuries to decrease the perihelion of the meteoroid orbits enough to intersect Earth's orbit, during which time the meteoroids and comet separate in mean anomaly by 6 years, thus explaining the 6-yea...
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free text keywords: Space and Planetary Science, Astronomy and Astrophysics
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