>Magister Scientiae - MSc / This work focuses on generating a new dynamical model of the nearby (9.5 Mpc) interacting
galaxy system NGC 1512/1510. Neutral hydrogen (H i ) observations from the Australia
Telescope Compact Array (ATCA) are used to model the dynamics of the main H i disk using
two routines, the two and three-dimensional modeling techniques. For the two-dimensional
modeling technique, we adopt ROTCUR which is based on fitting a tilted ring model onto
the 2D velocity field of the galaxy. The three-dimensional modeling routine used is 3DBarolo,
which is a recently developed algorithm of fitting 3D tilted ring model to the full data cube.
We note that the 2D approach fails to model the inclination profile of NGC 1512. Thus, a new
rotation curve is generated using the three-dimensional modeling routine only i.e. by fitting a
3D tilted ring model to the H i line data cube of NGC 1512/1510.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uwc/oai:etd.uwc.ac.za:11394/7720 |
| Date | January 2020 |
| Creators | Ndaliso, Xola |
| Contributors | Elson, Ed, Glowacki, M., Maartens, R. |
| 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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