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A.J. Barger (University of Hawaii and University of Wisconsin-Madison)
A primary goal of observational cosmology is to understand the star formation and accretion histories of the Universe from the earliest times to the present. A serious complication has been that dust-enshrouded distant galaxies are largely hidden from optical observations. Now we have our first views of the optically dark side of the Universe at hard X-ray, submillimeter, and radio wavelengths. New populations of extremely luminous galaxies are revealed in deep images obtained with the Chandra X-ray Observatory, the SCUBA submillimeter camera on the James Clerk Maxwell Telescope, and the VLA. Amazingly rapid progress is being made towards a cosmic census of obscured star-forming galaxies and supermassive black holes.
I gratefully acknowledge support as a Hubble Fellow and as a Chandra Fellow at Large from NASA and support from NSF.