Detecting the magnetic cosmic web through deep radio polarization imaging

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dc.contributor.advisorVan Der Heyden, Kurten_ZA
dc.contributor.advisorTaylor, Russen_ZA
dc.contributor.authorBurnham-King, Lauren Sen_ZA
dc.date.accessioned2018-02-07T12:17:45Z
dc.date.available2018-02-07T12:17:45Z
dc.date.issued2017en_ZA
dc.description.abstractThe polarisation of radio emission is one of the most powerful probes of magnetic fields in the cosmos. Faraday rotation of polarized radiation provides one of the methods to observe magnetic fields. Measuring the rotation of the polarisation angle of radiation from an extragalactic source over a broad radio bandwidth allows us to infer the properties of the magnetic fields that the radiation passed through on the path to the observer. In the last few decades, the presence of structure in the matter distribution of the universe has been observed. It remains an open question whether there are magnetic fields associated with this large-scale structure. Large-scale universe simulations allow us to investigate the effect of extragalactic magnetic fields on the spatial distribution of Rotation Measure (RM) of radio sources that will be detected in deep radio images with MeerKAT. We constructed lightcones out to z = 1 from large-scale universe simulations as a base for our model and assemble a routine to trace large scale structures, attach magnetic fields to the structure and construct RM observations. The aim is to explore whether deep MeerKAT continuum observations will be able to detect magnetic fields associated with large-scale structure (the so-called magnetic cosmic web).en_ZA
dc.identifier.apacitationBurnham-King, L. S. (2017). <i>Detecting the magnetic cosmic web through deep radio polarization imaging</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/27419en_ZA
dc.identifier.chicagocitationBurnham-King, Lauren S. <i>"Detecting the magnetic cosmic web through deep radio polarization imaging."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Astronomy, 2017. http://hdl.handle.net/11427/27419en_ZA
dc.identifier.citationBurnham-King, L. 2017. Detecting the magnetic cosmic web through deep radio polarization imaging. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Burnham-King, Lauren S AB - The polarisation of radio emission is one of the most powerful probes of magnetic fields in the cosmos. Faraday rotation of polarized radiation provides one of the methods to observe magnetic fields. Measuring the rotation of the polarisation angle of radiation from an extragalactic source over a broad radio bandwidth allows us to infer the properties of the magnetic fields that the radiation passed through on the path to the observer. In the last few decades, the presence of structure in the matter distribution of the universe has been observed. It remains an open question whether there are magnetic fields associated with this large-scale structure. Large-scale universe simulations allow us to investigate the effect of extragalactic magnetic fields on the spatial distribution of Rotation Measure (RM) of radio sources that will be detected in deep radio images with MeerKAT. We constructed lightcones out to z = 1 from large-scale universe simulations as a base for our model and assemble a routine to trace large scale structures, attach magnetic fields to the structure and construct RM observations. The aim is to explore whether deep MeerKAT continuum observations will be able to detect magnetic fields associated with large-scale structure (the so-called magnetic cosmic web). DA - 2017 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2017 T1 - Detecting the magnetic cosmic web through deep radio polarization imaging TI - Detecting the magnetic cosmic web through deep radio polarization imaging UR - http://hdl.handle.net/11427/27419 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/27419
dc.identifier.vancouvercitationBurnham-King LS. Detecting the magnetic cosmic web through deep radio polarization imaging. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Astronomy, 2017 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/27419en_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.titleDetecting the magnetic cosmic web through deep radio polarization imagingen_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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