Statistics – Applications
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ysc..conf...82g&link_type=abstract
YSC'16 Proceedings of Contributed Papers (eds. Choliy V. Ya., Ivashchenko G.), pp. 82-85
Statistics
Applications
Scientific paper
Researches in meteor physics are of current importance because of their implications for gaining information on cosmic-matter influx onto planets, for the studying of composition and structure of cometary nuclei, for calculating the orbital evolution timescale and the peak temperature reached on atmosphere entry. Majority of the existing conclusions in these applications are quite sensitive to assumed meteoroids masses and bulk densities values. In turn these values received by means of various approaches sometimes differ from each other by more than one order. Some approaches are very inefficient if applied for studying large bodies for which the major part of the luminous segment of the trajectory corresponds to conditions of continuous-medium flow around the meteoroid. Obviously our preference should be based on the correct physical models and the accessible experimental data, which allows avoiding rough assumptions and uncertainties in the explanation. As a first step in the present study we consider the original mathematical technique to find basic dynamic parameters of the theoretical relationship between the height and the velocity of the meteor body motion that helps to fit observations along the luminous part of the trajectories in the best way. The model was successfully applied to a number of bright meteors observed by the Canadian camera network and by the US Prairie network. The proposed general approach helps in understanding the extensive observational data of the deceleration of meteors and bolides.
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