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The Ultimate Halo Mass in a LCDM Universe
Michael T. Busha, August E. Evrard, Fred C. Adams +1
In the far future of an accelerating LCDM cosmology, the cosmic web of large-scale structure consists of a set of increasingly isolated halos in dynamical equilibrium. We examine t…
The Physics of Galaxy Clustering I: A Model for Subhalo Populations
Andrew R. Zentner, Andreas A. Berlind, James S. Bullock +2
(Abridged) We present a semi-analytic model for Cold Dark Matter halo substructure that can be used as a framework for studying galaxy formation and an ingredient in halo models of…
Galaxy-galaxy Lensing: Dissipationless Simulations Versus the Halo Model
Rachel Mandelbaum, Argyro Tasitsiomi, Uros Seljak +2
Galaxy-galaxy lensing is a powerful probe of the relation between galaxies and dark matter halos, but its theoretical interpretation requires a careful modeling of various contribu…
Measurement of Galaxy Cluster Sizes, Radial Profiles, and Luminosity Functions from SDSS Photometric Data
Sarah M. Hansen, Timothy A. McKay, Risa H. Wechsler +3
Imaging data from the Sloan Digital Sky Survey is used to measure the empirical size-richness relation for a large sample of galaxy clusters. Using population subtraction methods,…
Modeling Galaxy-Mass Correlations in Dissipationless Simulations
Argyro Tasitsiomi, Andrey V. Kravtsov, Risa H. Wechsler +1
We use high-resolution dissipationless simulations of the concordance flat LCDM model to make predictions for the galaxy--mass (GM) correlations and compare them to the recent SDSS…