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|Title:||Meteoroids interaction with the earth atmosphere|
|Authors:||Turchak, L. I.|
Gritsevich, M. I.
|Publisher:||Polish Society of Theoretical and Allied Mechanics|
|Citation:||Turchak L. I. Meteoroids interaction with the earth atmosphere / L. I. Turchak, M. I. Gritsevich // Journal of Theoretical and Applied Mechanics (Poland). — 2014. — Vol. 44. — Iss. 4. — P. 15-28.|
|Abstract:||In this study we evaluate meteoroid mass and its other properties based on the observed atmospheric trajectory. With account for aerodynamics, we formulate a problem by introducing key dimensionless parameters in the model, responsible for the drag, mass loss and rotation of meteoroid. The proposed model is suitable to categorize various impact events in terms of meteor survivability and impact damage and thus, to analyze consequences that accompany collisions of cosmic bodies with planetary atmosphere and surface. The different types of events, namely, formation of a massive single crater (Barringer, Lonar Lake), dispersion of craters and meteorites over a large area (Sikhote-Alin), absent of craters and meteorites, but huge damage (Tunguska) are considered as illustrative examples. The proposed approach helps to summarize the data on existing terrestrial impacts and to formulate recommendations for further studies valuable for planetary defence. It also significantly increases chances of successful meteorite recoveries in future. In other words, the study represents a 'cheap' possibility to probe cosmic matter reaching planetary surface and it complements results of sample-return missions bringing back pristine samples of the materials. © by Leonid I. Turchak 2015.|
|metadata.dc.description.sponsorship:||*Corresponding author e-mail: email@example.com. This work is supported by the Russian Foundation for Basic Research, project No. 13-07-00276 A and the Academy of Finland, project No. 260027. This paper is reported as a plenary lecture in the 12th National Congress on Theoretical and Applied Mechanics, 2013, Saints Constantine and Helena, Varna, Bulgaria.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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