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A Core-Mantle Model for Cometary Nuclei and Asteroids of Possible Cometary Origin

Published online by Cambridge University Press:  12 April 2016

Zdenek Sekanina
Zdenek Sekanina*
Affiliation:
Smithsonian Astrophysical Observatory

Extract

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Arguments for a long time have been brought forward in support of the idea that the minor planets with orbits approaching Earth's orbit might be of cometary origin. Our feeling is that before such hypotheses are considered for any particular object, it is necessary to prove that differences in physical appearance and dynamical behavior between a typical asteroid of the Apollo or Albert types and a typical short-period comet can be interpreted in terms of cometary evolution.

In this paper, we discuss models of cometary nuclei, transition of an object from cometary phase into asteroidal phase, and specific asteroidal objects that may be of cometary origin.

Information

Type
Part II-Origin of Asteroids Interrelations with Comets, Meteorites, and Meteors
Information
International Astronomical Union Colloquium , Volume 12: Physical Studies of Minor Planets , 1971 , pp. 423 - 428
Copyright
Copyright © NASA 1971

References

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