>Magister Scientiae - MSc / This work aims to study the dark matter content of the nearby (7.38 Mpc) dwarf
galaxy IC 4710 using the HI line observations from the Australia Telescope
Compact Array (ATCA). We produce the rst interferometric maps of the
galaxy HI distribution and dynamics and use these maps to measure important
quantities such as total HI mass, velocity width, and size. We create a dynamical
model of the galaxy using a three-dimensional modeling technique. The rotation
curve was obtained by tting a 3D tilted ring model to the HI data cube of
galaxy IC 4710. The dynamical modeling of IC 4710 is being done for the rst
time. We compare the model to the data cube to check for accuracy and found
that they are in good agreement; this shows that the results are reliable. The
obtained rotation curve is rising steeply until it reaches the maximum rotation
velocity of 24.6 km s1 at a radius of 100 arcsec.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uwc/oai:etd.uwc.ac.za:11394/8604 |
| Date | January 2021 |
| Creators | Mothogoane, Getrude Thando |
| Contributors | Elson, Edward |
| Publisher | University of Western Cape |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Rights | University of Western Cape |
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