New progress in Galactic metallicity and its evolution.

Details New progress in Galactic metallicity and its evolution. New progress in Galactic metallicity and its evolution.

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000pabei..18..151z&link_type=abstract

Prog. Astron., Vol. 18, No. 2, p. 151 - 158

Astronomy and Astrophysics

Astronomy

Galaxy: Chemical Evolution, Galaxy: Metal Content

Scientific paper

The average values of metallicity in the disk, the halo, and Galactic bulge are -0.2, -1.6, and -0.2 dex respectively. The age-metallicity relation (AMR) provides useful clues about the Galactic formation and evolution. In order to explain observed AMR and its scatter, mechanisms of diffusion of stellar orbits and non-instantaneous mixing must be considered in Galactic chemical evolution models.

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