Published March 15, 1982 | Version v1
Journal article Metadata-only

CNO isotopes and galactic chemical evolution

Creators

  • 1. Yale University Observatory

Description

In order to quantitatively reproduce the chemical abundance gradient and the age-metallicity relation observed in the disk of the Galaxy, numerical models of galactic chemical evolution have been computed under different assumptions on the star formation and infall rates. The best fit to the observed data is obtained for a model with a constant star formation rate and a uniform infall rate of 5 x 10-3 M/sub sun/ kpc-2 yr-1. Models with other star formation laws do not reproduce the observed data as well

Additional details

Publishing Information

Journal Title
Astrophys. J.
Journal Volume
254
Journal Issue
2
Series
Astrophys. J.
Journal Page Range
699-707
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
14722313
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
CARBON ISOTOPES; CHEMICAL COMPOSITION; COSMOCHEMISTRY; GALACTIC EVOLUTION; GALAXIES; ISOTOPE RATIO; NITROGEN ISOTOPES; NUCLEOSYNTHESIS; NUMERICAL SOLUTION; OXYGEN ISOTOPES
Descriptors DEC
CHEMISTRY