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The effect of the cosmic web on galaxy evolution in RESOLVE-A
Galaxy environment plays a significant role in galaxy evolution. While most work has focused on the effect of cluster and group environment, large scale structures, such as filaments and voids, may provide additional contributions. Recently, various authors have found correlations between galaxy mor...
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| Format: | Thesis |
| Language: | English |
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Department of Astronomy
2022
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| _version_ | 1867613312737345536 |
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| access_status_str | Open Access |
| author | Hoosain, Munira |
| author2 | Blyth, Sarah-Louise |
| author_browse | Blyth, Sarah-Louise Hoosain, Munira |
| author_facet | Blyth, Sarah-Louise Hoosain, Munira |
| author_sort | Hoosain, Munira |
| collection | Thesis |
| description | Galaxy environment plays a significant role in galaxy evolution. While most work has focused on the effect of cluster and group environment, large scale structures, such as filaments and voids, may provide additional contributions. Recently, various authors have found correlations between galaxy morphology, stellar mass and colour, and the distance to cosmic web filaments in both simulations and data. However, the effect of filaments on the gas supply of galaxies is still under investigation due to conflicting results. I use data from the Resolved Spectroscopy of a Local Volume (RESOLVE) survey, which is a low-redshift galaxy census complete down to log M?/M= 8.9, to study the relationship between galaxy properties and the cosmic web. I use the Discrete Persistence Structures Extractor (DisPerSE), a topology-based software package, to map filaments in the RESOLVEA field. This work shows that galaxies in RESOLVE-A have, higher stellar masses close to filaments. When accounting for the additional effect of groups, I find no variation in the colour of galaxies with respect to their distance to filament. Low-mass (log M?/M< 9.7) galaxies increase in gas fraction with increasing distance to filament, which may indicate that low-mass galaxies lose gas as they enter filaments. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/35799 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:08.683Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| 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:11427/35799 The effect of the cosmic web on galaxy evolution in RESOLVE-A Hoosain, Munira Blyth, Sarah-Louise Skelton, R.E. Astrophysics and Space Science Galaxy environment plays a significant role in galaxy evolution. While most work has focused on the effect of cluster and group environment, large scale structures, such as filaments and voids, may provide additional contributions. Recently, various authors have found correlations between galaxy morphology, stellar mass and colour, and the distance to cosmic web filaments in both simulations and data. However, the effect of filaments on the gas supply of galaxies is still under investigation due to conflicting results. I use data from the Resolved Spectroscopy of a Local Volume (RESOLVE) survey, which is a low-redshift galaxy census complete down to log M?/M= 8.9, to study the relationship between galaxy properties and the cosmic web. I use the Discrete Persistence Structures Extractor (DisPerSE), a topology-based software package, to map filaments in the RESOLVEA field. This work shows that galaxies in RESOLVE-A have, higher stellar masses close to filaments. When accounting for the additional effect of groups, I find no variation in the colour of galaxies with respect to their distance to filament. Low-mass (log M?/M< 9.7) galaxies increase in gas fraction with increasing distance to filament, which may indicate that low-mass galaxies lose gas as they enter filaments. 2022-02-22T03:59:57Z 2022-02-22T03:59:57Z 2021 2022-02-16T07:50:47Z Master Thesis Masters MSc http://hdl.handle.net/11427/35799 eng application/pdf Department of Astronomy Faculty of Science |
| spellingShingle | Astrophysics and Space Science Hoosain, Munira The effect of the cosmic web on galaxy evolution in RESOLVE-A |
| thesis_degree_str | Master's |
| title | The effect of the cosmic web on galaxy evolution in RESOLVE-A |
| title_full | The effect of the cosmic web on galaxy evolution in RESOLVE-A |
| title_fullStr | The effect of the cosmic web on galaxy evolution in RESOLVE-A |
| title_full_unstemmed | The effect of the cosmic web on galaxy evolution in RESOLVE-A |
| title_short | The effect of the cosmic web on galaxy evolution in RESOLVE-A |
| title_sort | effect of the cosmic web on galaxy evolution in resolve a |
| topic | Astrophysics and Space Science |
| url | http://hdl.handle.net/11427/35799 |
| work_keys_str_mv | AT hoosainmunira theeffectofthecosmicwebongalaxyevolutioninresolvea AT hoosainmunira effectofthecosmicwebongalaxyevolutioninresolvea |