Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-25T23:50:00.562Z Has data issue: false hasContentIssue false
  • English
  • Français

7. Relationship Between Meteorites, Asteroids and Comets

Published online by Cambridge University Press:  12 April 2016

B. J. Levin

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

There seem to be no objection any more to regard the asteroid belt as the past and present source of initial and intermediate parent-bodies of meteorites. Initial parent bodies were of the size of the present-day largest asteroids; the irregular size of medium sized asteroids suggests intermediate parent bodies fragmented by collisions. Finally, most of the terminal parent bodies can be identified with Earth-crossing or grazing objects. In contrast, icy planetesimals of the outer zone of the primeval nebula underwent almost no thermal evolution, but only a complicated orbital evolution leading to the comets observed now. This does not exclude the possibility that some extinct comets end up on asteroid-type orbits, although their nuclei might still contain ices covered by an insulating crust that can preserve them for a very long time. These could be the parent bodies of bolides, as opposed to meteorites.

Type
Part V. Orbital Evolution and Fragmentation of Asteroids
Information
International Astronomical Union Colloquium , Volume 39: Comets, Asteroids, Meteorites: Interrelations, Evolution and Origins , December 1977 , pp. 307 - 312
Copyright
Copyright © A.H. Delsemme 1977

References

Anders, E. 1964, Space Sci. Rev., 3, 583.Google Scholar
Anders, E. 1971, in Physical Studies of Minor Planets, (Ed. SP-267, p. 429.Google Scholar
Anders, E., and Mellick, P. J. 1969, in Meteorite Research, (ed. Millman, P.), Reidel, p. 559.Google Scholar
Anders, E., Levin, B. Yu., and Simonenko, A. N. 1976, Meteoritika, 35, 22.Google Scholar
Delsemme, A. H., and Rud, D. A. 1973, Astron. Astrophys., 28, 1.Google Scholar
Levin, B. Yu. 1959, Sterne, 35, 188.Google Scholar
Levin, B. Yu. 1963, Vorprosy kosmogonii, 9, 215.Google Scholar
Levin, B. J., Anders, E., and Simonenko, A. N. 1976, Icarus, 28, 307.Google Scholar
Marsden, B. G. 1969, Astr. J., 74, 720.Google Scholar
Marsden, B. G. 1970, Astr. J., 75, 75.CrossRefGoogle Scholar
Öpik, E. J. 1963, Adv. Astron. Astrophys., 2, 219.CrossRefGoogle Scholar
Öpik, E. J. 1966a, Adv. Astron. Astrophys., 4, 301.CrossRefGoogle Scholar
Öpik, E. J. 1966, in Nature et Origine des Cométes (Coll. Liége), p. 575.Google Scholar
Öpik, E. J., and Singer, S. F. 1957, Trans. Amer Geophys. Union, 38, 566.Google Scholar
Sekanina, Z. 1971, in Phys. Studies of Minor Planets (ed. Gehrels), T., p. 423.Google Scholar
Simonenko, A. N. 1975, Orbital Elements of 45 Meteorites (in Russ.) “Nauka,” Moscow.Google Scholar
Simonenko, A. N. 1977, this volume.Google Scholar
Simonenko, A. N., Anders, E., and Levin, Yu. 1976, Pis’ma v Astr. Zhurn., 2, 55.Google Scholar
Wetherill, G. W. 1974, Ann. Revs Earth Planet Sci., 2, 303.Google Scholar
Wetherill, G. W. Williams, J. G. 1968, J. Geophys. Res., 73, 635.Google Scholar
Wetherill, G. W. 1976, Preprint.Google Scholar
Williams, J. G. 1973, EOS, 54, 233.Google Scholar
Zimmerman, P. D. and Wetherill, G. W. 1973, Science 182, 51.CrossRefGoogle Scholar