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HIGH SPATIAL AND TEMPORAL RESOLUTION OPTICAL SEARCH FOR EVIDENCE OF METEOROID FRAGMENTATION |
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| Authors: | R L Hawkes P G Brown N R Kaiser A J Faloon K A Hill L A Rogers |
| Institution: | (1) Physics Department, Mount Allison University, Sackville, NB, Canada, E4L 1E6;(2) Physics and Astronomy Department, University of Western Ontario, London, ON, Canada, N6A 3K7;(3) Physics Department, Mount Allison University, Sackville, NB, Canada, E4L 1E6;(4) Present address: Department of Geology and Geophysics, University of Calgary, , Canada;(5) Present address: Department of Physics, University of Ottawa, , Canada |
| Abstract: | A digital image intensified CCD camera with an electronically gated image intensifier was used to produce very short duration images of meteors. The observational system employed a 0.40 m F/4.5 Newtonian telescope to obtain high spatial resolution. A second intensified CCD camera was used to yield height information using parallax. At a typical meteor height one pixel (for the vertically oriented system) corresponded to about 1.1 m. A sampling of 59 mainly sporadic meteors was analyzed. There is clear variability from meteor to meteor, with many meteors (nearly 50%) showing only a small amount of wake, while some meteors (approximately 20%) have the off segments completely filled in. |
| Keywords: | Ablation fragmentation high resolution meteor structure wake |
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