The G-dwarf problem - A synthetical approach

Details The G-dwarf problem - A synthetical approach The G-dwarf problem - A synthetical approach

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...256..415m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 256, no. 2, p. 415-420.

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Computation

9

Computational Astrophysics, Dwarf Stars, G Stars, Stellar Evolution, Abundance, Astronomical Models, Chemical Evolution, Galactic Evolution, Monte Carlo Method

Scientific paper

Chemical evolution models for the local Galactic disk are combined with stellar evolutionary tracks to simulate real stellar samples in a Monte Carlo-like approach. These synthetical samples enable to study the significance of selection bias in major observational constraints on chemical evolution models: the (O/H) distribution of long-lived stars and the age-(O/H) relation (AOR). It is found that selection effects do not much alleviate the G-dwarf problem and that there is essentially no selection bias in the AOR. It is difficult, however, to fit both constraints by the same simple chemical evolution model.

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