Toward the application of metric size function in galactic evolution and cosmology

Mathematics – Probability

Scientific paper

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Cosmology, Galactic Evolution, Size Determination, Elliptical Galaxies, Functions (Mathematics), Probability Theory, Red Shift

Scientific paper

The metric size function defined by Petrosian (1976) has been measured on a limited sample of luminous distant galaxies up to a redshift of 1.175. Preliminary evidence is found for the evolution of elliptical galaxies, and constraints are placed on the rates of dynamical evolution by means of the Ostriker-Hausman (1977) theoretical models. It is also found that the eta function is a sensitive probe for the investigation of galactic evolution, and of potential usefulness in cosmology. Problems remaining, and directions for future work, are outlined.

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