Multicolor analysis of galaxy clusters with radio halos and/or relics

 

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dc.contributor.advisor Oozeer, N en_ZA
dc.contributor.advisor Jarrett, Thomas en_ZA
dc.contributor.author Legodi, L S en_ZA
dc.date.accessioned 2015-07-03T08:34:37Z
dc.date.available 2015-07-03T08:34:37Z
dc.date.issued 2014 en_ZA
dc.identifier.citation Legodi, L. 2014. Multicolor analysis of galaxy clusters with radio halos and/or relics. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/13357
dc.description Includes bibliographical references. en_ZA
dc.description.abstract Galaxy clusters can be sites of considerable dynamic activity due to intra-cluster and inter-cluster interactions. These interactions include cluster-cluster mergers which are accompanied by large release of energy observed via thermal X-ray emission. The work presented here focuses on clusters that exhibit extended radio sources called radio relics and radio halos. The relics tend to be found in the peripheral regions of galaxy clusters while halos tend to be located at the central regions. These two types of sources share many of their characteristics but some of their key difference is radio polarization: relics tend to have polarised emission while halos do not. The observed polarisations and the non-thermal nature of the emission of these sources suggests the existence of large scale magnetic fields which permeate galaxy cluster volumes. Investigations into relic and halo sources may shed light into the formation of galaxy clusters and how they evolve. A way of analysing the evolution of clusters is to investigate the evolutionary state of their galaxy populations. This work aims to both characterise galaxy membership and probe galaxy evolution in these clusters through a spatial, kinematic and photometric analysis. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Astronomy en_ZA
dc.title Multicolor analysis of galaxy clusters with radio halos and/or relics en_ZA
dc.type Thesis / Dissertation en_ZA
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Astronomy en_ZA
dc.type.qualificationlevel Masters en_ZA
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image


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