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7. Carbon Isotope Ratio in Comets and Interstellar Matter
Published online by Cambridge University Press: 12 April 2016
Abstract
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
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