Lenticular galaxies - the one in the middle

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dc.contributor.advisorBarway, Sudhanshuen_ZA
dc.contributor.advisorSheth, Kartiken_ZA
dc.contributor.advisorVan der Heyden, Kurten_ZA
dc.contributor.authorMalinga, Simonen_ZA
dc.date.accessioned2016-07-27T10:25:51Z
dc.date.available2016-07-27T10:25:51Z
dc.date.issued2016en_ZA
dc.description.abstractThe lenticular (S0) galaxies introduced by Hubble (1936) as a morphological transition class between elliptical and early-type spiral galaxies, which have the most massive bulges among disk galaxies, may have formed in several different ways as suggested by theoretical and numerical simulation studies. A sample of lenticular galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G) using the Spitzer Space Telescope along with Sloan Digital Sky Survey (SDSS) was used for this project to study molecular gas properties as well morphologies associated with dust where molecular gas is present. A variety of image processing techniques are employed to study the details of galaxies to uncover the presence of molecular gas in S0 galaxies. We obtained colour maps using 3:6 and 4:5 micron images and SDSS r and i band images to find these galaxies have sufficient amount of dust and molecular gas along with variety of dust morphologies. In this thesis, we have shown, for the first time that the mass of molecular gas obtained by Carbon Monoxide (CO) is correlated to colour excess measured from (r - 3:6) and (i - 4:5) colour maps. It would be important to study this relation using advance facilities such as ALMA and MeerKAT to explore properties of molecular gas in nearby early-type galaxies in detail.en_ZA
dc.identifier.apacitationMalinga, S. (2016). <i>Lenticular galaxies - the one in the middle</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/20871en_ZA
dc.identifier.chicagocitationMalinga, Simon. <i>"Lenticular galaxies - the one in the middle."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Astronomy, 2016. http://hdl.handle.net/11427/20871en_ZA
dc.identifier.citationMalinga, S. 2016. Lenticular galaxies - the one in the middle. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Malinga, Simon AB - The lenticular (S0) galaxies introduced by Hubble (1936) as a morphological transition class between elliptical and early-type spiral galaxies, which have the most massive bulges among disk galaxies, may have formed in several different ways as suggested by theoretical and numerical simulation studies. A sample of lenticular galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G) using the Spitzer Space Telescope along with Sloan Digital Sky Survey (SDSS) was used for this project to study molecular gas properties as well morphologies associated with dust where molecular gas is present. A variety of image processing techniques are employed to study the details of galaxies to uncover the presence of molecular gas in S0 galaxies. We obtained colour maps using 3:6 and 4:5 micron images and SDSS r and i band images to find these galaxies have sufficient amount of dust and molecular gas along with variety of dust morphologies. In this thesis, we have shown, for the first time that the mass of molecular gas obtained by Carbon Monoxide (CO) is correlated to colour excess measured from (r - 3:6) and (i - 4:5) colour maps. It would be important to study this relation using advance facilities such as ALMA and MeerKAT to explore properties of molecular gas in nearby early-type galaxies in detail. DA - 2016 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 T1 - Lenticular galaxies - the one in the middle TI - Lenticular galaxies - the one in the middle UR - http://hdl.handle.net/11427/20871 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/20871
dc.identifier.vancouvercitationMalinga S. Lenticular galaxies - the one in the middle. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Astronomy, 2016 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/20871en_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.titleLenticular galaxies - the one in the middleen_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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