Stellar evolution and some parameters of galaxies and their nuclei

Details Stellar evolution and some parameters of galaxies and their nuclei Stellar evolution and some parameters of galaxies and their nuclei

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980azh....57..942t&link_type=abstract

(Astronomicheskii Zhurnal, vol. 57, Sept.-Oct. 1980, p. 942-952.) Soviet Astronomy, vol. 24, Sept.-Oct. 1980, p. 539-545. Trans

Astronomy and Astrophysics

Astronomy

10

Astronomical Models, Galactic Evolution, Galactic Nuclei, Gas Density, Mass Transfer, Stellar Evolution, Abundance, Galactic Radiation, Heavy Elements, Spiral Galaxies, Stellar Luminosity, Stellar Structure, Supernovae

Scientific paper

A simple model for the evolution of a galaxy is developed which makes it possible to follow the time variation of such descriptive parameters as star composition, luminosity, and heavy-element abundance. The model takes into account the exchange of matter between the stellar and gaseous components of a galaxy. Calculations are presented which show that the main parameter governing the rate of evolution of a galaxy is the minimum mass of the stars that form. The best fit for the parameters observed in the Galaxy is obtained for a minimum mass of about 0.2 solar mass.

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