Radio cosmology in South Africa

Speaker: 
Yin-Zhe Ma ( University of KwaZulu-Natal)
Event Date and Time: 
Mon, 2017-01-23 15:30 - 16:45
Location: 
Hennings 318
Local Contact: 
Douglas Scott and Jaymie Matthews
Intended Audience: 
Graduate

My talk will be in two parts. PART 1: Mapping the integrated emission from redshifted neutral hydrogen is an emerging and completely independent way of optical surveys to measure Baryonic Acoustic Oscillations (BAOs) at low redshifts. The observations of the HI signal will be contaminated by instrumental noise, atmospheric noise and diffuse emissions coming from our Galaxy, which are expected to be at least four orders of magnitude brighter than the HI signal we wish to detect. After discussing these potential contaminants, I'll introduce how to simulate the data which would be produced in single-dish intensity mapping experiments like BINGO, FAST and MeerKAT. PART 2: I'll bring you up to date on current developments of South African astronomy projects, including human capacity development, and the scope of future collaborations.

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