Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985baicz..36..116j&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 36, no. 2, 1985, p. 116-122. NSERC-supported research
Astronomy and Astrophysics
Astronomy
5
Astrometry, Meteoroids, Orbital Elements, Inclination, Perihelions, Statistical Distributions
Scientific paper
This paper describes the results of a population analysis based on the beginning heights of 454 doubly observed TV meteors. Both the A and C levels previously seen in the Super-Schmidt data are present and the existence of the C3 group previously reported in a small TV meteor survey is confirmed. For the C or higher of the two levels radiation cooling appears to be the dominant heat loss mechanism while for the lower level thermal conduction into the interior of the meteoroid seem to be more important. The material properties of the particles in the upper level are difficult to determine. Comparison of theory and observation seems to demand that the A meteoroids be of a dense material with a fairly high thermal conductivity such as stone. The origin of the C3 group is discussed.
Ceplecha Zd.
Jones Jason J.
Sarma Teddy
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