Modelling the kinematics of the cold gas in galaxies using GalAPAGOS
Loading...
Date
2018
Authors
Blanchette, Keagan
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Galaxy rotation curves are the primary method of investigation into galaxy kinematics in this work. The University of Manitoba developed software package GalAPAGOS was renovated for optically thin gas, as well as used to generate the galaxy rotation curves. GalAPAGOS uses analytic fitting equations to produce models and describe the galaxy kinematics, as well as the density distribution.
GalAPAGOS was applied to both HI and CO observational spectral line cubes to demonstrate that these model rotation curves and density profiles would benefit studies of normal galaxies (e.g. NGC 3198), peculiar galaxies (e.g. NGC 2188), and the centres of ellipticals (e.g. NGC 3665). The family of models generated for each galaxy were able to accurately reproduce the morphology and kinematic characteristics of these galaxies, along with density profiles and rotation curves. We then used the rotation curves to calculate the total dynamical mass inside the radius of the observed gas disk.
Description
Keywords
Physics, Astronomy, Astrophysics, Modelling, Galaxies, Cold gas, Kinematics, Rotation curves, GalAPAGOS