BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Adrian Liu\, UC Berkeley\n\n
In the next few years\, low-freq uency radio telescopes will use the 21cm line of neutral hydrogen to make unprecedentedly large maps of our observable Universe. These will provide exquisite constraints on the properties of the first stars and galaxies. A long these lines\, I will review recent results from the Precision Array t o Probe the Epoch of Reionization (PAPER) experiment\, which have begun to shed light on heating processes in the early universe. I will also discus s how comparing theory and observations will become difficult as one enter s the regime of &ldquo\;big data&rdquo\; and theoretical models become inc reasingly complicated. I will describe how machine learning techniques mak e such comparisons computationally feasible. Finally\, I will discuss the recently commenced Hydrogen Epoch of Reionization Array (HERA) experiment\ , including its forecasted ability to constrain fundamental parameters suc h as the neutrino mass. Looking to the future\, I will highlight additiona l opportunities to constrain cosmology and particle physics using the 21cm line.
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\n DTSTART:20170227T203000Z LOCATION:Physics Building\, Room 204 SUMMARY:The Past\, Present\, and Future of 21cm Cosmology END:VEVENT END:VCALENDAR