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Possible Evidence of Ablation on Cosmic Dust Particles

Published online by Cambridge University Press:  12 April 2016

Curtis L. Hemenway
Curtis L. Hemenway*
Affiliation:
Dudley Observatory and State University of New York at AlbanyAlbany, New York

Extract

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Öpik (1937) and Whipple (1950) have predicted that small dust particles should be able to enter the Earth’s atmosphere without reaching their melting temperature and thus retain their original shape prior to entry. They have shown that the critical size is a strong function of velocity as well as the physical parameters of the dust particle. A number of investigators have collected particles at high altitude believed to be of this type (Hemenway and Soberman, 1962; Wright and Hodge, 1964; Thomsen, 1963). This brief paper presents possible evidence of the existence of small bodies collected with our Sesame collector (Hemenway et al., 1967; Hemenway et al., 1971) which apparently were sufficiently large to experience surface ablation and melting.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 13: Evolutionary and Physical Properties of Meteoroids , June 1971 , pp. 255 - 257
Copyright
Copyright © NASA 1971

References

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