Statistics
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sosyr..29...64l&link_type=abstract
Solar System Research, Vol. 29, No. 1, p. 64 - 68
Statistics
Meteoroids: Statistics, Meteoroids: Fragmentation, Meteoroids: Masses, Meteoroids: Chemical Composition
Scientific paper
A method of semiempirical simulation of the altitudes of meteor disappearance is discussed. This method makes it possible to estimate the features of the parent meteoroids in the framework of their quasi-continuous fragmentation theory. Four gradations of meteoroid characteristics were introduced. For each of these groups average masses of coarse fraction of fragments were determined by comprehensive mathematical simulation of altitudes and deceleration data of 402 super-Schmidtean meteors. The average masses of coarse fraction of fragments were 0.06 - 1 mg. The application of the semiempirical simulation method to a statistically representative catalog of 359 super-Schmidtean meteors, and taking into account observation selectivity, made it possible to determine that about 40% of meteoroids entering the Earth's atmosphere had either a very friable structure, a high content of volatile compounds, or an unusual chemical composition. The fraction of meteoroids of the carbonaceous chondrite-C I type with high content of volatile compounds was about 33%.
Galkina I. V.
Lebedinets Vladimir N.
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