Browsing Philosophiae Doctor - PhD (Physics) by Author "Cress, Catherine"

Now showing items 1-3 of 3

  • Clustering studies of radio-selected galaxies 

    Passmoor, Sean Stuart (University of the Western Cape, 2011)
    We investigate the clustering of HI-selected galaxies in the ALFALFA survey and compare results with those obtained for HIPASS. Measurements of the angular correlation function and the inferred 3D-clustering are compared ...

  • Far-infrared-radio relations in clusters and groups at intermediate redshift 

    Randriamampandry, Solohery Mampionona (University of the Western Cape, 2014)
    In this thesis, we present a multi-wavelength analysis of star-forming galaxies to shed new light on the evolution of the far-IR-radio relations in intermediate redshift (0.3 < z < 0.6) galaxy clusters and galaxy groups. ...

  • Galaxy evolution and cosmology studies using luminous red galaxies 

    Ratsimbazafy, Ando (University of the Western Cape, 2014)
    There have been a number of attempts to measure the expansion rate of the Universe using age-dating of Luminous Red Galaxies (LRGs). Assuming that stars in LRGs form at the same time, age-dating of two populations of LRGs ...