A study in spherical accretion of self-gravitating fluids in a general relativistic framework

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dc.contributor.advisorViollier, Raoul Den_ZA
dc.contributor.advisorTupper, Gary Ben_ZA
dc.contributor.authorRichter, M Cen_ZA
dc.date.accessioned2015-01-06T12:12:40Z
dc.date.available2015-01-06T12:12:40Z
dc.date.issued2010en_ZA
dc.descriptionIncludes abstract.en_ZA
dc.descriptionIncludes bibliographical references (leaves 46-49).en_ZA
dc.description.abstractA new general framework for studying relativistic spherical accretion of a self-gravitating fluid onto a central black hole is introduced in stationary coordinates for an observer at infinity. The important feature of gravitational backreaction due to a self-gravitating fluid on the metric is included in the model. The model is solved numerically for the most simple case of a polytropic fluid and compared to analytical solutions, which the model approximates in the "test-fluid" limit. The model is then focused on the accretion of a relativistic Fermi gas and the implications this might have on the rapid growth of supermassive black holes from clouds of sterile neutrino dark matter in the early universe. The results give good agreement with a Newtonian model of supermassive black hole growth called the symbiotic scenario.en_ZA
dc.identifier.apacitationRichter, M. C. (2010). <i>A study in spherical accretion of self-gravitating fluids in a general relativistic framework</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Physics. Retrieved from http://hdl.handle.net/11427/11576en_ZA
dc.identifier.chicagocitationRichter, M C. <i>"A study in spherical accretion of self-gravitating fluids in a general relativistic framework."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Physics, 2010. http://hdl.handle.net/11427/11576en_ZA
dc.identifier.citationRichter, M. 2010. A study in spherical accretion of self-gravitating fluids in a general relativistic framework. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Richter, M C AB - A new general framework for studying relativistic spherical accretion of a self-gravitating fluid onto a central black hole is introduced in stationary coordinates for an observer at infinity. The important feature of gravitational backreaction due to a self-gravitating fluid on the metric is included in the model. The model is solved numerically for the most simple case of a polytropic fluid and compared to analytical solutions, which the model approximates in the "test-fluid" limit. The model is then focused on the accretion of a relativistic Fermi gas and the implications this might have on the rapid growth of supermassive black holes from clouds of sterile neutrino dark matter in the early universe. The results give good agreement with a Newtonian model of supermassive black hole growth called the symbiotic scenario. DA - 2010 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2010 T1 - A study in spherical accretion of self-gravitating fluids in a general relativistic framework TI - A study in spherical accretion of self-gravitating fluids in a general relativistic framework UR - http://hdl.handle.net/11427/11576 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/11576
dc.identifier.vancouvercitationRichter MC. A study in spherical accretion of self-gravitating fluids in a general relativistic framework. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Physics, 2010 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/11576en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Physicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPhysicsen_ZA
dc.titleA study in spherical accretion of self-gravitating fluids in a general relativistic frameworken_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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