case western reserve university



Cosmic Voids and Void Galaxies

Michael Vogeley (Drexel)

Cosmic voids provide a unique laboratory for studying structure formation in the universe. Multiband photometry and spectroscopy of galaxies in the Sloan Digital Sky Survey allow detailed study of the few galaxies that reside in very low density regions. High-resolution N-body/hydro simulations and semi-analytic modelling provide predictions for the properties of void galaxies. I will discuss methods of identifying voids in galaxy redshift survey data, properties of void galaxies in the SDSS, and compare these results with the theoretical predictions. I will also discuss new methods for simulating cosmic voids and the galaxies within them.