A study of the nearby interacting galaxy pair NGC 1512/1510
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Date
2020
Authors
Journal Title
Journal ISSN
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Publisher
University of Western Cape
Abstract
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.
Description
>Magister Scientiae - MSc
Keywords
Neutral hydrogen, Australia, ROTCUR, NGC 1512, NGC 1510