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The morphology and absolute diameters of galaxies
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Astronomy
2015
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| _version_ | 1867613212322562049 |
|---|---|
| access_status_str | Open Access |
| author | Block, David Lazar |
| author2 | Fairall, Anthony Patrick |
| author_browse | Block, David Lazar Fairall, Anthony Patrick |
| author_facet | Fairall, Anthony Patrick Block, David Lazar |
| author_sort | Block, David Lazar |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/12539 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:33.381Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| 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:11427/12539 The morphology and absolute diameters of galaxies Block, David Lazar Fairall, Anthony Patrick Astronomy Includes bibliographical references. This is the first time to the author's knowledge that a catalogue of galaxy photographs has been prepared on a uniform physical scale. Of the many interesting aspects which result from such an investigation, we mention here the fundamentally new appreciation both of the diversity of spiral arm texture, and in the range of the intrinsic diameters of galaxies, particularly the spirals. Small, high surface brightness spiral galaxies form an important subgroup; these present a saturated or predominantly saturated image on the SRC IIIa-J Survey. An intercomparison of their appearance on the J-film copies and those of the "Quick Blue" Survey shows an inner morphology often indicative of substantial differential rotation effects. One of our galaxies in the sample shows significant signs of warping; the spiral has no bright, close companions. Also of note are faint, featureless outer envelopes in some of the spirals, and galaxies with faint outer spiral arms whose pitch angles are significantly different from those of the central inner region. Further results are discussed in chapter 3 onwards. A by-product of this investigation is the identification of the largest known (type b) barred spiral. 2015-02-24T04:14:35Z 2015-02-24T04:14:35Z 1980 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/12539 eng application/pdf Department of Astronomy Faculty of Science University of Cape Town |
| spellingShingle | Astronomy Block, David Lazar The morphology and absolute diameters of galaxies |
| thesis_degree_str | Doctoral |
| title | The morphology and absolute diameters of galaxies |
| title_full | The morphology and absolute diameters of galaxies |
| title_fullStr | The morphology and absolute diameters of galaxies |
| title_full_unstemmed | The morphology and absolute diameters of galaxies |
| title_short | The morphology and absolute diameters of galaxies |
| title_sort | morphology and absolute diameters of galaxies |
| topic | Astronomy |
| url | http://hdl.handle.net/11427/12539 |
| work_keys_str_mv | AT blockdavidlazar themorphologyandabsolutediametersofgalaxies AT blockdavidlazar morphologyandabsolutediametersofgalaxies |