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Orbital Elements of 2004 Perseid Meteoroids Perturbed by Jupiter |
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| Authors: | Josep Maria Trigo-Rodriguez Jeremie Vaubaillon José Luís Ortiz Alberto Castro-Tirado Jordi Llorca Esko Lyytinen Martin Jelínek Antonio de Ugarte Postigo Pablo Santos Sanz Francisco J Aceituno Castro Albert Sánchez Caso Antonio Bernal González Juan Pastor Erades Francisco Ocaña |
| Institution: | (1) Institut Ciències de l’Espai – CSIC, Campus UAB, Facultat de Ciències, Torre C5-parell-2a, 08193 Bellaterra, Barcelona, Spain;(2) Institut d’Estudis Espacials de Catalunya (IEEC), Edif. Nexus, c/Gran Capità, 2-4, 08034 Barcelona, Spain;(3) University of Western Ontario, London, Ontario, Canada;(4) Instituto de Astrofísica de Andalucía (IAA-CSIC), PO Box 3004, 18080 Granada, Spain;(5) Universitat Politècnica de Catalunya, Barcelona, Spain;(6) Kehakukantie 3 B, 00720 Helsinki, Finland;(7) Gualba Observatory, MPC 442, Barcelona, Spain;(8) Asociación Astronómica de Castelldefels, Barcelona, Spain;(9) Agrupació Astronòmica de Sabadell, Barcelona, Spain;(10) Agrupación Astronómica de Madrid, Madrid, Spain |
| Abstract: | Jupiter and Saturn produce important gravitational impulses on meteoroids released by comet 109P/Swift-Tuttle. The meteoroids from this comet once released follow retrograde orbits that during their periodic approaches to these planets (within 1.6 and 0.9 A.U., respectively) are impulsed gaining orbital energy. This perturbation effect is translated into a net inward shift in the node of the perturbed meteoroids. Such geometry with Jupiter occurred in 2004 over a meteoroid trail ejected by this comet during the 1862 A.D. return of the comet to perihelion. In order to study the predicted outburst produced by one-revolution meteoroids, the Spanish Photographic Meteor Network (SPMN) performed an extensive campaign. As a part of this observational effort here are presented 10 accurate meteoroid orbits. We discuss their origin by comparing them with the theoretical orbital elements of the dust trails intercepting the Earth during the 2004 Perseid return. |
| Keywords: | 109P/Swift-Tuttle perseids meteors meteor outburst dust trail |
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