Recent Advances in Cosmological Hydrogen Reionization

Abstract

I discuss recent advances in the study of hydrogen reionization, focusing on progress that was achieved during the years 2010-2011. First, I discuss recent measurements of the progress of reionization. Next, I discuss recent observational constraints on the nature and abundance of the dominant ionizing sources. Finally, I discuss recent progress in modeling reionization. This review is written for an audience of astronomers who do not specialize in the high-redshift Universe.Comment: 17 pages, no figures, submitted to the proceedings of the 2011 Frank N. Bash Symposium, "New Horizons in Astronomy