7. Carbon Isotope Ratio in Comets and Interstellar Matter
- 1 December 1977
- journal article
- Published by Cambridge University Press (CUP) in International Astronomical Union Colloquium
- Vol. 39, 499-503
- https://doi.org/10.1017/s0252921100070469
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.Keywords
This publication has 7 references indexed in Scilit:
- The C-12/C-13 ratio in comet Kohoutek /1973f/The Astrophysical Journal, 1974
- Isotopic Abundances and Their Variations within the GalaxyScience, 1974
- The Isotope Ratio 12C/13C in Comet Tago-Sato (1969g)The Astrophysical Journal, 1973
- A Measurement of the Interstellar ^{12}C/^{13}C RatioThe Astrophysical Journal, 1972
- Carbon Monoxide in the Interstellar Spectrum of Zeta OphiuchiThe Astrophysical Journal, 1971
- Probable Detection of Interstellar C^{13}H^{+}.The Astrophysical Journal, 1969
- The Isotope Ratio C^{12}/C^{13} in a Comet.The Astrophysical Journal, 1964