A study of open one-zone models for the chemical evolution of the local galactic disk

Details A study of open one-zone models for the chemical evolution of the local galactic disk A study of open one-zone models for the chemical evolution of the local galactic disk

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...266..190m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 266, no. 1, p. 190-201.

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7

Astronomical Models, Chemical Evolution, Disk Galaxies, Galactic Evolution, Solar Neighborhood, Computational Astrophysics, Interstellar Gas, Interstellar Matter, Metallicity, Star Formation Rate

Scientific paper

An attempt is made to incorporate processes of outflow of enriched matter into chemical evolution models for the solar neighborhood, at which the main emphasis is to try to reproduce all available astronomical constraints. The star formation rate, the initial mass function and the gas infall rate are not prescribed by analytical laws in order to avoid such simplifications. The results confirm the assumption that gas infall was presumably much more important at early times than at present. A combined occurrence of gas infall and outflow of gas and dust may play a role, provided that the yield is larger than the solar metallicity.

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