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

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dc.contributor.advisorOozeer, Nen_ZA
dc.contributor.advisorJarrett, Thomasen_ZA
dc.contributor.authorLegodi, L Sen_ZA
dc.date.accessioned2015-07-03T08:34:37Z
dc.date.available2015-07-03T08:34:37Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractGalaxy 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.identifier.apacitationLegodi, L. S. (2014). <i>Multicolor analysis of galaxy clusters with radio halos and/or relics</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/13357en_ZA
dc.identifier.chicagocitationLegodi, L S. <i>"Multicolor analysis of galaxy clusters with radio halos and/or relics."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Astronomy, 2014. http://hdl.handle.net/11427/13357en_ZA
dc.identifier.citationLegodi, L. 2014. Multicolor analysis of galaxy clusters with radio halos and/or relics. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Legodi, L S AB - 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. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Multicolor analysis of galaxy clusters with radio halos and/or relics TI - Multicolor analysis of galaxy clusters with radio halos and/or relics UR - http://hdl.handle.net/11427/13357 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13357
dc.identifier.vancouvercitationLegodi LS. Multicolor analysis of galaxy clusters with radio halos and/or relics. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Astronomy, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13357en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Astronomyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherAstronomyen_ZA
dc.titleMulticolor analysis of galaxy clusters with radio halos and/or relicsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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