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Perturbations of dark energy models
(University of Western Cape, 2012)
The growth of structure in the Universe proceeds via the collapse of dark matter
and baryons. This process is retarded by dark energy which drives an accelerated
expansion of the late Universe. In this thesis we use ...
Infrared-bright galaxies in the millennium simulation and Sunyaev Zeldovich effect contamination
(2010)
Measuring the evolution of the abundance of galaxy clusters puts constraints on cosmological parameters like the cosmological density parameter m, σ8 and the dark energy equation of state parameter, w. Current observations ...
Modelling radio galaxies in the Millennium simulation: SKA/MeerKAT sources and CMB contaminants
(University of the Western Cape, 2010)
We investigate the modelling of radio galaxies within a semi-analytic framework in the Millennium Simulation of the Virgo Consortium. The aim is to assess the radio sources contamination of Sunyaev-Zeldovich (SZ) signatures ...