Now showing items 1-8 of 8

    • Assessing the Accuracy of Cosmological Parameters Estimated from Velocity – Density Comparisons 

      Hollinger, Amber (University of Waterloo, 2024-01-10)
      A promising method for measuring the cosmological parameter combination fσ₈ is to compare observed peculiar velocities with peculiar velocities predicted from a galaxy density field using linear perturbation theory, known ...
    • The Dependence of Halo Mass on Galaxy Size at Fixed Stellar Mass Using Weak Lensing 

      Charlton, Paul (University of Waterloo, 2017-04-24)
      Stellar mass has been shown to correlate with halo mass, but with significant scatter. The stellar mass-size and luminosity-size relationships of galaxies also show significant scatter in galaxy sizes for a fixed stellar ...
    • Galaxy Morphology In Cluster Environments 

      Mehmood, Harisah (University of Waterloo, 2017-08-25)
      It is a well known fact that cluster environments favour early-type galaxies over late- type. However, the physical origin of the correlation remains uncertain. We focus specifically on the external environmental mechanisms ...
    • Probing Dark Matter from the Galaxy to the Cosmic Web 

      Yang, Tianyi (University of Waterloo, 2020-01-23)
      Dark matter, although invisible, accounts for the majority of matter of the universe. How this invisible component affects cosmic structure formation is one of the primary lines of inquiry in physical cosmology, and the ...
    • The Shape of Dark Matter Haloes: Results from Weak Lensing 

      Robison, Bailey (University of Waterloo, 2020-09-25)
      Dark matter haloes are expected to have a triaxial shape, appearing elliptical in projection. Understanding the orientation of these dark matter haloes, and how they are aligned, has implications for theories of structure ...
    • Star Formation and Quenching in Galaxies: Groups, Clusters, and Mergers 

      Reeves, Andrew (University of Waterloo, 2023-08-21)
      This thesis studies the impact of galaxy environment on star formation and ‘quenching’, by using simple physically-motivated models that can be fit using available observed quantities. Quenching refers to the close to total ...
    • Topics in early and late Universe cosmology 

      Sarma Boruah, Supranta (University of Waterloo, 2020-08-11)
      In this thesis, we explore different problems in various areas of cosmology. The inflationary paradigm has been very successful in explaining cosmological observations. However, some problems still linger on. In the ...
    • Topics in weak gravitational lensing 

      Spitzer, Isaac (University of Waterloo, 2022-01-25)
      In this thesis, various topics pertaining to weak gravitational lensing and its application to cosmology and galaxy evolution are explored. The first chapter is the introduction which contains all of the background ...


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