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.