Using skao and other surveys to study the large-scale structure of the universe
| dc.contributor.author | Dlamini, Simthembile | |
| dc.contributor.supervisor | Maartens, Roy | |
| dc.date.accessioned | 2024-11-05T09:21:19Z | |
| dc.date.available | 2024-11-05T09:21:19Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | We are currently in a time of precision cosmology, marked by an extensive accumulation of data for comprehending our Universe. Nonetheless, our current grasp of the subject remains incomplete. Our most successful cosmological model relies on components that have yet to be directly detected and do not harmonize with our broader physics model. This implies that there is still much to probe and a high demand for novel techniques to explore the cosmos. One method gaining traction over the last decade is mapping the intensity of the 21cm emission from neutral hydrogen (HI) within unresolved galaxies. Understanding the large-scale structure of the Universe, characterized by galaxies, clusters, and superclusters, is a cornerstone of modern astrophysics. This research presents an investigation into the Universe’s large-scale structure, employing the Square Kilometre Array Observatory (SKAO) in conjunction with other surveys. The study leverages the analytical tool of Fisher forecast analysis to estimate the constraining power of these surveys. The SKAO offers a unique opportunity to probe the Universe’s large-scale structure via the 21 cm emission line of HI. By incorporating complementary surveys, this research develops a multi-tracer view of cosmic structure, encompassing various redshift ranges and investigating the constraints on key cosmological parameters. | |
| dc.identifier.uri | https://hdl.handle.net/10566/17454 | |
| dc.language.iso | en | |
| dc.publisher | Universty of the Western Cape | |
| dc.subject | Square Kilometre Array Observatory | |
| dc.subject | MeerKAT | |
| dc.subject | Cosmology | |
| dc.subject | General Relativity | |
| dc.subject | Cosmological Principle | |
| dc.title | Using skao and other surveys to study the large-scale structure of the universe | |
| dc.type | Thesis |