The structure of the Large Magellanic Cloud

 

Show simple item record

dc.contributor.advisor Feast, Michael ; Whitelock, Patricia en_ZA
dc.contributor.author Abedigamba, Oyirwoth Patrick en_ZA
dc.date.accessioned 2015-07-14T09:01:29Z
dc.date.available 2015-07-14T09:01:29Z
dc.date.issued 2010 en_ZA
dc.identifier.citation Abedigamba, O. 2010. The structure of the Large Magellanic Cloud. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/13514
dc.description Includes bibliographical references (leaves 67-69). en_ZA
dc.description.abstract This work gives an account of the study of the metallicity [Fe/H] distribution (gradient) in the oldest population in the Large Magellanic Cloud (LMC), by making use of the available RR Lyrae data from the Optical Gravitational Lensing Experiment III (OGLE III). RR Lyrae stars are amongst the oldest objects in the universe and they have a range in element (metal) abundances. Measuring the distribution of metallicities of RR Lyrae stars in a galaxy gives one clues to the origin of galaxies. It is known that the pulsation periods of RR Lyraes is broadly correlated with their metallicity. This fact has been used for investigating the metallicity distribution of RR Lyrae stars in the LMC. I have found an indication that the proportion of metal poor RR Lyrae stars increases with distance from the centre of the LMC. In addition, an attempt was made to improve the metallicity-period relation by introducing the Fourier parameters, but this was unsuccessful. Lastly, a comparison is made with estimates of metallicity gradients of other LMC populations. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Astronomy en_ZA
dc.title The structure of the Large Magellanic Cloud en_ZA
dc.type Master Thesis
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
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Abedigamba, O. P. (2010). <i>The structure of the Large Magellanic Cloud</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/13514 en_ZA
dc.identifier.chicagocitation Abedigamba, Oyirwoth Patrick. <i>"The structure of the Large Magellanic Cloud."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Astronomy, 2010. http://hdl.handle.net/11427/13514 en_ZA
dc.identifier.vancouvercitation Abedigamba OP. The structure of the Large Magellanic Cloud. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Astronomy, 2010 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13514 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Abedigamba, Oyirwoth Patrick AB - This work gives an account of the study of the metallicity [Fe/H] distribution (gradient) in the oldest population in the Large Magellanic Cloud (LMC), by making use of the available RR Lyrae data from the Optical Gravitational Lensing Experiment III (OGLE III). RR Lyrae stars are amongst the oldest objects in the universe and they have a range in element (metal) abundances. Measuring the distribution of metallicities of RR Lyrae stars in a galaxy gives one clues to the origin of galaxies. It is known that the pulsation periods of RR Lyraes is broadly correlated with their metallicity. This fact has been used for investigating the metallicity distribution of RR Lyrae stars in the LMC. I have found an indication that the proportion of metal poor RR Lyrae stars increases with distance from the centre of the LMC. In addition, an attempt was made to improve the metallicity-period relation by introducing the Fourier parameters, but this was unsuccessful. Lastly, a comparison is made with estimates of metallicity gradients of other LMC populations. DA - 2010 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2010 T1 - The structure of the Large Magellanic Cloud TI - The structure of the Large Magellanic Cloud UR - http://hdl.handle.net/11427/13514 ER - en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record