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The near infrared luminosity function of the Norma Cluster
In this thesis, a near infrared KB-band photometric catalogue of galaxies in the Nonna cluster is presented. The survey of the cluster covers an area of '" 0.8h702 Mpc2, and is estimated to be complete to a magnitude of MK. ⋨-19 mag; this extends into the dwarf regime, 6 magnitudes below M'k •. The...
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| Format: | Thesis |
| Language: | English |
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Department of Astronomy
2024
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| _version_ | 1867613277724344320 |
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| access_status_str | Open Access |
| author | Skelton, R.E |
| author2 | Kraan-Korteweg, Renee |
| author_browse | Kraan-Korteweg, Renee Skelton, R.E |
| author_facet | Kraan-Korteweg, Renee Skelton, R.E |
| author_sort | Skelton, R.E |
| collection | Thesis |
| description | In this thesis, a near infrared KB-band photometric catalogue of galaxies in the Nonna cluster is presented. The survey of the cluster covers an area of '" 0.8h702 Mpc2, and is estimated to be complete to a magnitude of MK. ⋨-19 mag; this extends into the dwarf regime, 6 magnitudes below M'k •. The catalogue contains 390 objects, 235 of which are classified as likely or definite galaxies and 155 as candidate galaxies. The K.,-band luminosity function (LF) is constructed from the photometric sample, using a smaller spectroscopic survey to estimate the number of member galaxies at each magnitude. A Schechter function provides a reasonable fit to the data, with a characteristic magnitude of M'k. = -25.36 ± 0.74 mag and faint-end slope of a = -1.25 ± 0.10. There is a distinct dip in the LF at MK. '" -22 mag. The shape of the LF is similar to those found in previous determinations of the cluster LF, in both optical and near infrared. The Schechter parameters obtained by flagging the dip point agree well with those of recent field LFs. This suggests that both the shape of the bright end and the faint end slope are relatively insensitive to environment. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/39967 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:35.758Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Department of Astronomy |
| publisherStr | Department of Astronomy |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/39967 The near infrared luminosity function of the Norma Cluster Skelton, R.E Kraan-Korteweg, Renee Woudt, Patrick Astronomy In this thesis, a near infrared KB-band photometric catalogue of galaxies in the Nonna cluster is presented. The survey of the cluster covers an area of '" 0.8h702 Mpc2, and is estimated to be complete to a magnitude of MK. ⋨-19 mag; this extends into the dwarf regime, 6 magnitudes below M'k •. The catalogue contains 390 objects, 235 of which are classified as likely or definite galaxies and 155 as candidate galaxies. The K.,-band luminosity function (LF) is constructed from the photometric sample, using a smaller spectroscopic survey to estimate the number of member galaxies at each magnitude. A Schechter function provides a reasonable fit to the data, with a characteristic magnitude of M'k. = -25.36 ± 0.74 mag and faint-end slope of a = -1.25 ± 0.10. There is a distinct dip in the LF at MK. '" -22 mag. The shape of the LF is similar to those found in previous determinations of the cluster LF, in both optical and near infrared. The Schechter parameters obtained by flagging the dip point agree well with those of recent field LFs. This suggests that both the shape of the bright end and the faint end slope are relatively insensitive to environment. 2024-06-19T09:21:23Z 2024-06-19T09:21:23Z 2007 2024-06-19T09:09:31Z Thesis / Dissertation Masters Masters http://hdl.handle.net/11427/39967 eng application/pdf Department of Astronomy Faculty of Science |
| spellingShingle | Astronomy Skelton, R.E The near infrared luminosity function of the Norma Cluster |
| thesis_degree_str | Master's |
| title | The near infrared luminosity function of the Norma Cluster |
| title_full | The near infrared luminosity function of the Norma Cluster |
| title_fullStr | The near infrared luminosity function of the Norma Cluster |
| title_full_unstemmed | The near infrared luminosity function of the Norma Cluster |
| title_short | The near infrared luminosity function of the Norma Cluster |
| title_sort | near infrared luminosity function of the norma cluster |
| topic | Astronomy |
| url | http://hdl.handle.net/11427/39967 |
| work_keys_str_mv | AT skeltonre thenearinfraredluminosityfunctionofthenormacluster AT skeltonre nearinfraredluminosityfunctionofthenormacluster |