ASTRONOMY COLLOQUIUM - APRIL 25, 2006
Ue-Li Pen , CITA
Searching for First Light in the Universe
The first luminous objects which reionized the universe are constrained to have formed at redshifts 6<z<20. I will report on theoretical and observational constraints, and progress through simulations and observations, with emphasis on the PAST/21CMA and GMRT projects.