Nonlinear Growth of Structure in Cosmological Simulations
Lukic, Zarija
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https://hdl.handle.net/2142/85186
Description
Title
Nonlinear Growth of Structure in Cosmological Simulations
Author(s)
Lukic, Zarija
Issue Date
2008
Doctoral Committee Chair(s)
Ricker, Paul M.
Department of Study
Astronomy
Discipline
Astronomy
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, General
Language
eng
Abstract
Finally, we present the results of a comparison between 10 different cosmology codes. These include virtually all major codes used today, and more importantly, they completely cover the range of numerical algorithms used in cosmological N-body simulations. For the mass function, the matter power spectrum, and halo profiles --- the most important statistics for this thesis --- codes agree at less then 10% over wide dynamic ranges. This robustness gives us additional confidence in our numerical results.
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