OpenUCT Home
→
Browsing by Author

Browsing by Author "Maartens, Roy"

Now showing items 1-5 of 5

Exact non-equilibrium solutions of the Einstein-Boltzmann equations

Author: Wolvaardt, F P Date: 1994 In this thesis we use the exact solution of the Boltzmann equation, with a relaxation-time model of collisions, to find solutions of the Einstein-Boltzmann system of equations. A covariant harmonic decomposition of the distribution function ... Read more
Fluid and gas models in FLRW and almost FLRW universes

Author: Gebbie, Timothy John Date: 1996 Recently the universe has been modeled in the covariant sense, in terms of fluid models and perturbations thereof, leading to Gauge Invariant Covariant (GIC) perturbations of these fluid models. It is well known that kinetic theory provides ... Read more
Galaxy correlations and the BAO in a void universe: structure formation as a test of the Copernican Principle

Author: February, Sean ; Clarkson, Chris ; Maartens, Roy Date: 19 A suggested solution to the dark energy problem is the void model, where accelerated expansion is replaced by Hubble-scale inhomogeneity. In these models, density perturbations grow on a radially inhomogeneous background. This large scale ... Read more
A study of potential calibrators using the KAT-7 radio telescope

Author: Kassaye, Ermias Abebe Date: 2015 This thesis presents a study of potential calibrators observed by the Karoo Array Telescope (KAT-7). The KAT-7 is an engineering prototype for the coming sensitive array, the MeerKAT, one of the pathfinders for the Square Kilometre Array ... Read more
Temperature anisotropies: covariant CMB anisotropies and nonlinear corrections

Author: Gebbie, Tim Date: 1999 The questions I ask myself are generally all along the lines of "so where did all this structure come from?". I hoped that work in the CMB and its cosmological implications would give me insight into this. It is an adventure that is still ... Read more

Now showing items 1-5 of 5

Browse

All of OpenUCT

Browsing by Author "Maartens, Roy"

Browsing by Author "Maartens, Roy"

Browse

All of OpenUCT