Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989rmxaa..18..161p&link_type=abstract
(Universidad Nacional Autonoma de Mexico and CONACYT, Conferencia Mexicana-Texana de Astrofisica, 2nd, Mexico City, MX, Feb. 22-
Astronomy and Astrophysics
Astronomy
65
Abundance, Astronomical Models, Chemical Evolution, Galactic Evolution, Interstellar Chemistry, Nuclear Fusion, Dwarf Stars, Formalism, Interstellar Gas, Metallicity, Stellar Evolution
Scientific paper
Hartwick's (1976) modified model for the halo and Clayton's (1985, 1988) analytical inflow formalism for the disk are presently used to formulate a self-consistent, analytical chemical-evolution model for the disk and halo of the Galaxy in the solar neighborhood; both formalisms are modified to permit a time delay between the production of such elements as O, and the alpha-elements, r-process elements, and such 'delayed' elements as the s-process products. The model is found to conform well with such traditional constraints as star formation rate behavior and the G dwarf problem; model predictions also suggest that enrichment, as a function of time, is an important effect, and that the s-process is 'primary'.
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