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Detailed Reference Information |
Pellinen-Wannberg, A., Murad, E., Gustavsson, B., Brändström, U., Enell, C., Roth, C., Williams, I.P. and Steen, Å. (2004). Optical observations of water in Leonid meteor trails. Geophysical Research Letters 31: doi: 10.1029/2003GL018785. issn: 0094-8276. |
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Two simultaneous filtered images (589 and 423 nm) of a meteor trail were recorded during the 2002 Leonid storm. The first image shows Na atoms and the second Ca and Fe atoms and signals at altitudes much higher than can give rise to ablation of metals, in agreement with other observations of high altitude visible trails <Spurn¿ et al., 2000a; Spurn¿ et al., 2000b>. Ablation models <McNeil et al., 1998> and analysis of the history of the 2002 Leonid meteoroids <McNaught and Asher, 1999> support the conclusion that the high altitude emissions are due to H2O+ and Hα,¿,γ formed through the decomposition in the hyperthermal collision between H2O from meteoroid ice <Kres¿k, 1973> and atmospheric N2 <Dressler et al., 1992>. |
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Abstract |
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Keywords
Planetology, Comets and Small Bodies, Ice, Planetology, Comets and Small Bodies, Impact phenomena, Planetology, Solar System Objects, Comets, Planetology, Solar System Objects, Asteroids and meteoroids, Planetology, Solar System Objects, Meteors |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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