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Title:
Merging and fast galaxy evolution
Authors:
Carlberg, R. G.
Affiliation:
AA(Toronto Univ., Canada)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 399, no. 1, p. L31-L34. (ApJL Homepage)
Publication Date:
11/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Faint Objects, Galactic Evolution, Interacting Galaxies, Astronomical Models, Dwarf Galaxies, Gravitational Effects, Halos, Red Shift, Star Formation Rate
DOI:
10.1086/186599
Bibliographic Code:
1992ApJ...399L..31C

Abstract

A dynamically based galaxy merger rate formula is combined here with a luminosity evolution calculation better to quantify the evolution of the rapid galaxy merger model of galactic evolution. A dynamical calculation which follows the evolution of the galaxy mass function with redshift is presented. It is concluded that current epoch merger rates imply little mass evolution up to z = 0.5 but a substantial change thereafter.

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