Speaker
Jonathan Pober
(Brown University)
Description
21 cm cosmology -- the concept of using radio telescopes to observe the highly redshifted 21 cm line of neutral hydrogen on cosmological scales -- is a field on the verge of a breakthrough. The first generation of 21 cm cosmology experiments (LOFAR, MWA, and PAPER, among others) have been operating for several years, and first results at the level of design sensitivity are potentially forthcoming. In this talk, I will present early reionization science results from PAPER and the MWA, before describing the path to higher sensitivity and precise characterization of the 21 cm signal. I will also discuss efforts to better connect 21 cm experiments to other reionization observables in order to maximize our understanding of this epoch.