CONTACT THE ALUMNI RELATIONS OFFICE: ISSUE 17 | JULY 2016
ISSUE 17 | JULY 2016
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UNIVERSITY OF THE WESTERN CAPE
ALUMNI NEWSLETTER
New Centre for Radio Cosmology
T
he University of the Western Cape’s Department of Physics and Astronomy has launched its new Centre for Radio Cosmology (CRC), funded by the South African Square Kilometre Array (SKA) Project, to fully answer some of the deepest mysteries of space.
Led by UWC’s Professor Mario Santos, the chair of the international SKA Science Working Group for Cosmology, the new research centre aims to exploit the use of next-generation radio telescopes for measurements in cosmology – particularly with South African experiments at MeerKAT, HERA and SKA (when
completed, the SKA will be the largest radio telescope in the world). The Centre will help to develop the pipelines and technical knowledge required to have a world-leading group capable of conducting the radio surveys and tackling the huge data volumes that the telescopes will provide. “A lot of preliminary work is required before we can actually deal with the real data, and the Centre will allow a coordinated team to tackle this task,” explains Prof Santos. “Once the data starts arriving, we will be in a privileged position to analyse it and provide some of the more stringent constraints on cosmology using radio telescopes.” Prof Santos’s team is conducting test observations with the
KAT-7 telescope to test calibration techniques with real data. They are also running simulations to determine the optimal process for cleaning measurements from contaminant signals. The simulations are run on large computer servers and generate considerable amounts of data that will be processed by the team. The CRC will also be analysing the data coming from large radio surveys in order to extract cosmological information. “These simulations are crucial if we want to understand what we are actually going to see. When doing an observation, the telescope changes the expected signal in many different ways, and we need to understand and correct these changes – for calibration,” says Prof Santos.
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