Cosmic microwave background anisotropies in the presence of a weak magnetic field

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dc.contributor.authorKahle, Aen_ZA
dc.date.accessioned2014-07-31T08:08:09Z
dc.date.available2014-07-31T08:08:09Z
dc.date.issued2003en_ZA
dc.descriptionBibliography: leaves 87-90.
dc.description.abstractOne of the questions cosmology still has not satisfactorily resolved is the origin of magnetic fields in the universe. These have been observed at all scales where man has c:evised means to observe them, from stellar scales, to intergalactic and intercluster scales. Indeed, there is no reason to believe that they are not present, at some level, at even larger scales. However, a satisfactory explanation for their origin is yet to be found. The two most popular theories for the creation of these magnetic fields, namely the Galactic dynamo, and primordial field amplification, both rely on the presence of a seed field, which they then amplify. However, the galactic dynamo requires a far weaker seed field compared to primordial field amplification. It would thus be helpful, in trying to understand magnetogenesis, if one could discover some means to detect such a seed field. One way to do so would be to search for a signature that such a magnetic field might leave on the CMB, and then look for the presence of this signature in CMB observations. This is the principal aim of this thesis.en_ZA
dc.identifier.apacitationKahle, A. (2003). <i>Cosmic microwave background anisotropies in the presence of a weak magnetic field</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/4894en_ZA
dc.identifier.chicagocitationKahle, A. <i>"Cosmic microwave background anisotropies in the presence of a weak magnetic field."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2003. http://hdl.handle.net/11427/4894en_ZA
dc.identifier.citationKahle, A. 2003. Cosmic microwave background anisotropies in the presence of a weak magnetic field. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kahle, A AB - One of the questions cosmology still has not satisfactorily resolved is the origin of magnetic fields in the universe. These have been observed at all scales where man has c:evised means to observe them, from stellar scales, to intergalactic and intercluster scales. Indeed, there is no reason to believe that they are not present, at some level, at even larger scales. However, a satisfactory explanation for their origin is yet to be found. The two most popular theories for the creation of these magnetic fields, namely the Galactic dynamo, and primordial field amplification, both rely on the presence of a seed field, which they then amplify. However, the galactic dynamo requires a far weaker seed field compared to primordial field amplification. It would thus be helpful, in trying to understand magnetogenesis, if one could discover some means to detect such a seed field. One way to do so would be to search for a signature that such a magnetic field might leave on the CMB, and then look for the presence of this signature in CMB observations. This is the principal aim of this thesis. DA - 2003 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2003 T1 - Cosmic microwave background anisotropies in the presence of a weak magnetic field TI - Cosmic microwave background anisotropies in the presence of a weak magnetic field UR - http://hdl.handle.net/11427/4894 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/4894
dc.identifier.vancouvercitationKahle A. Cosmic microwave background anisotropies in the presence of a weak magnetic field. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2003 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/4894en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMathematics and Applied Mathematicsen_ZA
dc.titleCosmic microwave background anisotropies in the presence of a weak magnetic fielden_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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