An interpretation of galactic observations of CNO isotopes

Details An interpretation of galactic observations of CNO isotopes An interpretation of galactic observations of CNO isotopes

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...217...51c&link_type=abstract

Astrophysical Journal, Part 1, vol. 217, Oct. 1, 1977, p. 51-55.

Astronomy and Astrophysics

Astrophysics

1

Abundance, Interstellar Chemistry, Nitrogen Isotopes, Oxygen Isotopes, Stellar Mass Ejection, Carbon, Nuclear Models, Nuclear Transformations, Stellar Mass, Stellar Models

Scientific paper

Nuclear network calculations are used to interpret observations of N-15/N-14 and O-17/O-18 abundance ratios in interstellar clouds. Recent observations of the N-15/N-14 abundance ratio in the galactic disk and the galactic center are consistent with the idea that N-15 is produced in intermediate-mass stars by means of the hot CNO tri-cycle. It is suggested that low-mass stars in the glactic center could be responsible for producing the local enhancement of O-17 by low-temperature (below 100 million K) CNO burning.

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