Dr. James Fry
University of Florida

University of Florida Astronomy Colloquium - Mar 8th, 2006

Large Scale Structure in the Halo Model

The clustering of matter on large scales is now understood in great detail, but smaller scales remain more problematic, not least because statistics of mass and galaxy number behave differently. A generation ago the stable clustering model faced off against the power-law cluster model, and stable clustering appeared to win the draw, but recently the halo model has found new life and provides valuable insight into clustering on nonlinear scales. I will review the historical development and the considerations that led to this revival and present some of the cosmological applications.