Evolution of a cluster of galaxies and the dark matter problem

Details Evolution of a cluster of galaxies and the dark matter problem Evolution of a cluster of galaxies and the dark matter problem

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991azh....68..225v&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 68, Mar.-Apr. 1991, p. 225-235. In Russian.

Astronomy and Astrophysics

Astronomy

2

Chemical Evolution, Dark Matter, Galactic Clusters, Galactic Evolution, Abundance, Astronomical Models, Deuterium, Interstellar Gas, Luminosity, Metallicity

Scientific paper

A model for the chemical and photometrical evolution of a cluster of galaxies explaining observations of deuterium and CNO elements in galaxies of various types and ages as well as the evolution of galactic luminosities and color indices is proposed. The possibility of galactic metallicity exhibiting nonmonotonic behavior at redshifts of about 1 is shown. The small decrease in the primary deuterium abundance results in the value of the baryon density parameter approximating 0.1, which leads to the conclusion that dark matter is nonbaryonic. Graphs illustrate the relationship of the galactic content of gas and the mass concentrations of chemical elements in elliptical and spiral galaxies, and the evolution of luminosities for models for these galaxies.

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