Now showing items 1-7 of 7

  • Imprints of Primordial Non-Gaussianity on Large Scale Structure in the Universe 

    Hashim, Mahmoud Yousif Ali Wahba (University of the Western Cape, 2016)
    Large scale structure in the universe is one of the most important probing tools for cosmological modelling. Assuming the hot big bang model of the universe, the expansion history has undergone two phases of acceleration. ...
  • Modelling the growth of large-scale structure with interacting fluids 

    Onchong’a, Okeng’o Geoffrey (University of the Western Cape, 2015)
    Prevailing astronomical and astrophysical observations suggest that we live in a spatially flat cold dark matter (CDM) universe - currently going through a period of accelerated expansion possibly driven by “dark energy” ...
  • The observed bispectrum for SKA and other galaxy surveys 

    Jolicoeur, Sheean (University of the Western Cape, 2019)
    Next-generation galaxy surveys will usher in a new era of high precision cosmology. They will increasingly rely on the galaxy bispectrum to provide improved constraints on the key parameters of a cosmological model to ...
  • Perturbations of dark energy models 

    Elmufti, Mohammed (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 ...
  • Probing large-scale structure with the SKAO and other cosmological surveys 

    Viljoen, Jan-Albert (University of the Western Cape, 2022)
    In recent history there have been several advances in cosmology, which has significantly shaped our understanding of the Universe. The current leading theory is called ΛCDM, which can successfully model the expansion of ...
  • Probing the expansion history of the universe using upernovae and Baryon Acoustic Oscillations 

    Ali, Sahba Yahya Hamid (University of the Western Cape, 2016)
    The standard model of cosmology (the ɅCDM model) has been very successful and is compatible with all observational data up to now. However, it remains an important task to develop and apply null tests of this model. These ...
  • Relativistic corrections to the power spectrum 

    Duniya, Didam Gwazah Adams (University of the Western Cape, 2015)
    The matter power spectrum is key to understanding the growth of large-scale structure in the Universe. Upcoming surveys of galaxies in the optical and HI will probe increasingly large scales, approaching and even exceeding ...