The galactic gradient of N/N-15

Details The galactic gradient of N/N-15 The galactic gradient of N/N-15

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...247l..37m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 247, no. 2, July 1991, p. L37-L40.

Astronomy and Astrophysics

Astrophysics

18

Chemical Evolution, Galactic Evolution, Milky Way Galaxy, Nitrogen Isotopes, Nuclear Fusion, Astronomical Models, Novae, Spatial Distribution, Supernovae, Temporal Distribution

Scientific paper

The isotopic ratio N/N-15 is considered in terms of its temporal and spatial behavior in the Galaxy by examining a model of Galactic chemical evolution. The model predicts that since the epoch of the formation of the solar system, N/N-15 has decreased by a factor of about 1.8, and that the gradient of N/N-15 is about +6.8/Kpc along the Galactic disk. The observational constraints given by the model are theorized to be of value to future theoretical work because the model scenario is self-consistent.

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