Browsing by Subject "Astronomy"
Now showing items 1-13 of 13
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Application of anomaly detection techniques to astrophysical transients
(University of Western Cape, 2021)We are fast moving into an era where data will be the primary driving factor for discovering new unknown astronomical objects and also improving our understanding of the current rare astronomical objects. Wide field ... -
Cosmology with next generation radio telescopes
(University of the Western Cape, 2019)The next generation of radio telescopes will revolutionize cosmology by providing large three-dimensional surveys of the universe. This work presents forecasts using the technique 21cm intensity mapping (IM) combined ... -
E2/M1 mixing in the Jπ= 5/2+ to 3/2+ transition in 21Na and its relation to the 20Ne(p,y ) stellar reaction rate
(University of the Western Cape, 2022)In the above, M is the total mass of the molecular cloud, R is its radius, k is Boltzmann's constant, G is the gravitational constant, T is the cloud temperature, m is the mean molecular weight, and is the cloud molecular ... -
HI intensity mapping: Impact of primary beam effects
(University of the Western Cape, 2023)Neutral hydrogen (HI) intensity mapping surveys with upcoming and future radio telescopes such as the MeerKAT, a precursor to the Square Kilometre Array Observatory (SKAO) MID telescope, have great potential for constraining ... -
The interstellar medium scaling relations in cosmological simulations
(University of the Western Cape, 2022)This work presents the scaling relations for the redshift zero galaxies in the SIMBA1 cosmological hydrodynamic simulations. The aim is to test the degree to which the SIMBA simulations reproduce the physical properties ... -
Mock HI spectral line stacking experiments for large galaxy surveys
(University of Western Cape, 2019)The study of neutral atomic hydrogen (HI) plays a vital role in improving the knowledge about galaxy evolution since HI serves as the raw fuel for star formation. However, the current knowledge about it is limited to the ... -
Out of thermodynamic equilibrium reaction of zinc-molybdenum system monitored by real-time rutherford backscattering spectrometry
(University of the Western Cape, 2022)Solid phase reaction of bi-metallic thin films of zinc-molybdenum was thermally induced in order to investigate the diffusion kinetics of this bi-metallic system. The Zinc-Molybdenum bilayers were prepared by depositing ... -
Pre-equilibrium cross section calculations with a realistic effective nucleon-nucleon interaction
(University of the Western Cape, 1995)The principle aim of this work is to improve the way in which pre-equilibrium double differential cross-sections are currently calculated [1, 2, 3, 4]. The theoretical basis for these calculations is the Multistep Direct ... -
Radon exhalation studies for applications in low background environments.
(University of the Western Cape, 2022)Neutrinoless double beta decay (0 ) is a rare process that is yet to be observed. Observation of neutrinoless double beta decays would imply lepton number violation, and that the neutrino is its own antiparticle ... -
A study of the angular momentum content of early-type galaxies
(University of the Western Cape, 2019) -
Supervised machine learning techniques for radio source classification
(University of the Western Cape, 2023)Classification is one of the most fundamental aspects of scientific investigation. Astronomers have thus developed several classification schemes to try and make sense of the evolving properties of planets, stars and ... -
Synthesis and characterization of ion implanted Pd/Ti/V/Pd/Ti based multilayer thin films using rutherford backscattering spectrometry (rbs) and elastic recoil detection analysis (erda) for hydrogen storage application
(University of the Western Cape, 2022)Hydrogen is regarded as an attractive, pollution-free energy carrier for future energy systems, supported by its efficient energy conversion. Still, the challenge is its storage and transportation. Hydrogen can either ... -
Synthesis of bimetallic immiscible alloy nanoparticles through green and gamma radiolysis approaches for environmental remediation applications
(University of the Western Cape, 2022)The synthesis of bimetallic immiscible alloy nanoparticles (NPs) using versatile routes, is a major concern since physio-chemical methods are not environmentally benign. Breaking down the immiscibility would generate NPs ...