On relations of 12C/13C isotope ratio and stellar evolution and nucleosynthesis.

Details On relations of 12C/13C isotope ratio and stellar evolution and nucleosynthesis. On relations of 12C/13C isotope ratio and stellar evolution and nucleosynthesis.

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pabei..17...66m&link_type=abstract

Prog. Astron., Vol. 17, No. 1, p. 66 - 73

Astronomy and Astrophysics

Astronomy

Isotopic Composition: Stellar Evolution, Isotopic Composition: Nucleosynthesis, Isotopic Composition: Galaxy

Scientific paper

A brief review is given for 12C/13C isotope ratio in the Galaxy and extragalaxy based on the mm-wave and optical observational results, and the relations of 12C/13C isotope ratio and stellar evolution and nucleosynthesis are also introduced. There is a gradient in the 12C/13C ratio with DGC in the Galaxy. From the comparison of Galactic and extragalactic 12C/13C ratio it is indicated that the nuclear region of the Galaxy has been quiescent for a long time. The difference of the 12C/13C ratio in stars is a reflection of their different evolution phase.

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