Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.168..317r&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 168, no. 2, June 1990, p. 317-330.
Astronomy and Astrophysics
Astrophysics
14
Dwarf Stars, Metallicity, Solar Neighborhood, Star Distribution, Stellar Models, Chemical Evolution, Interstellar Chemistry, Interstellar Gas, Star Formation, Stellar Luminosity
Scientific paper
A preliminary method is proposed to handle the intrinsic chemical inhomogeneity in models of chemical evolution of the solar neighborhood. If a Gaussian spread in metallicity (z = Fe/H) about a 'mean' metallicity is assumed in the birth function of stars, the metallicity distribution of stars as a function of time is investigated, assuming that the mean metallicity evolves linearly with time. Metallicity (Fe/H) histograms are plotted for A-, F-, G-, and K-dwarfs of the local disk population based on the compilation of data from several sources, and compared with the existing ones. The above method was applied on these distributions to check whether distribution of the local A-, F-, and K-dwarfs could be fitted reasonably well with a single set of parameters derived from a fit to the metallicity distribution of the G-dwarfs.
Basu Sarbani
Rana Narayan C.
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