On the abundance spread in solar neighbourhood stars

Details On the abundance spread in solar neighbourhood stars On the abundance spread in solar neighbourhood stars

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...280..136f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 280, no. 1, p. 136-140

Astronomy and Astrophysics

Astrophysics

25

Abundance, Age Factor, Astronomical Models, Chemical Evolution, G Stars, Galactic Evolution, Metallicity, Solar Neighborhood, Cosmology, Disks (Shapes), Galactic Bulge, Hydrogen, Iron, Milky Way Galaxy, Nuclear Fusion

Scientific paper

We discuss the spread observed in the age-metallicity distribution and in the (alpha/Fe) versus (Fe/H) relations for stars in the solar neighborhood, by means of a detailed model of galactic chemical evolution. We conclude that most of the observed spread, which is claimed to be real, can be accounted for by the fact that some of the stars we observe at the present time, in the solar vicinity, might have been born in different regions of the galactic disk and bulge, which evolved at a different rate than the solar region.

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