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Reionization and the Murchison Widefield Array

The Murchison Widefield Array (MWA) is the first radio telescope in the Southern Hemisphere designed specifically to explore the astronomical sky between 80 and 300 MHz with arcminute angular resolution and high survey efficiency.  The MWA has been designed as a compact array consisting of 128 phased-array dipole antenna tiles with the goal of detecting 21 cm emission from the reionization epoch.  The telescope has sufficient sensitivity to probe the 21 cm power spectrum between redshifts 6<z<10, potentially yielding new information on the evolution of the neutral fraction of the IGM during this period, as well as the sources responsible for reionization.  Full science observations with the MWA began in July 2013.  Here, I will present an overview of early results from the MWA and the status of redshifted 21 cm science.

 

Cody Hall

Judd Bowman (Arizona State U)

May 30, 2014
14:00 - 15:00