Bibcode
Berrier, Joel Craig
Bibliographical reference
Proquest Dissertations And Theses 2008. Section 0030, Part 0606 135 pages; [Ph.D. dissertation].United States -- California: University of California, Irvine; 2008. Publication Number: AAT 3328054. Source: DAI-B 69/09, Mar 2009
Advertised on:
6
2008
Citations
0
Refereed citations
0
Description
I use computer simulations to examine the evolution of close galaxy pair
counts and the formation of galaxy clusters. I show that the evolution
of the close pair fraction is much weaker than the strong evolution in
the dark matter halo merger rate. I continue with a discussion of how
galaxy cluster-sized dark matter halos are assembled. This result,
contrary to some expectations, shows that galaxy clusters in simulations
are built from field halos instead of groups. I conclude by presenting
preliminary results of a method to determine the pair fraction of
galaxies at z=3 and apply it to a spectroscopic sample of LBGs. I show
that the pair fraction is a factor of ~ 4 higher at z ~ 3 compared to
local galaxy samples with similar number densities.