Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-29T12:56:52.839Z Has data issue: false hasContentIssue false
  • English
  • Français

7. Carbon Isotope Ratio in Comets and Interstellar Matter

Published online by Cambridge University Press:  12 April 2016

V. Vanysek

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.

The 12C/13C isotope ratio in the interstellar medium and in stellar atmospheres is discussed and compared to the value found in the solar system and especially in comets. The cometary value (≥ 100) tends to be slightly above the terrestrial value (89) and is definitively higher than that for interstellar molecular clouds (about 30 to 50). This result implies that comets are not of interstellar origin.

Type
Part VIII. The Origin of Comets
Information
International Astronomical Union Colloquium , Volume 39: Comets, Asteroids, Meteorites: Interrelations, Evolution and Origins , December 1977 , pp. 499 - 503
Copyright
Copyright © A.H. Delsemme 1977

References

Allen, C. W. 1963, Astrophysical Quantities, London.Google Scholar
Audouze, J., Lequeux, J., and Vigroux, L. 1975, Astron. & Astrophys., 43, 71.Google Scholar
Bertojo, M., Cheung, A. C., and Townes, C. H. 1974, Science, 184, 619.Google Scholar
Bortolot, V. J., and Thaddeus, P. 1969, Astrophys. J. Letters, 155, L17.Google Scholar
Bout, Vanden, P. A. 1972, Astrophys. J. Letters, 176, L127.Google Scholar
Danks, A. C., Lambert, D. L., and Arpigny, C. 1974, Astrophys. J., 194, 745.Google Scholar
Kikuchi, S., and Okazaki, A. 1975, Publ. Astron. Soc. Japan, 27, 107.Google Scholar
Owen, T. 1973, Astrophys. J., 184, 33.Google Scholar
Smith, A. M., and Stecher, T. P. 1971, Astrophys. J. Letters, 164, L43.Google Scholar
Stawikowski, A., and Greenstein, J. L. 1964, Astrophys. J., 140, 1280.Google Scholar
Vanysek, V. 1976, unpublished results.Google Scholar
Whiteoak, J. B., and Gardner, F. F. 1972, Astrophys. Letters, 11, 15.Google Scholar
Winnewisser, G. 1976, Astr. Ges. Mitt., 40, 49.Google Scholar