The Current Mass Function of Galaxies

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We make use of recent photometric and kinematic surveys of nearby galaxies to construct the current mass function of galaxies. Models of hierarchical merging predict that the mass function of galaxies will evolve over time and with environment. We compute the mass within the radius containing 80% of the optical light and construct mass functions for both elliptical and spiral galaxies. We suggest that this function can be used to quantify the mass evolution of these systems and discuss its relevance to high-redshift galaxy surveys and numerical simulations.

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