We present H I spectral line images of the nearby dwarf galaxy NGC 3239. The galaxy’s curious morphology suggests that it is a post-merger system. We propose that NGC 3239 is a merger because it has multiple tidal tails, an enhanced velocity dispersion throughout the disk, and widespread star formation. We have produced kinematic moment maps corresponding to the H I column density, radial velocity, and velocity dispersion. Further, position velocity (P-V) slices of the galaxy were taken and three-color images were made using the SDSS G, R, and I, filters for comparison with the moment maps. These slices illustrate the complex neutral gas dynamics in the galaxy and support the interaction hypothesis
Ford, Robert N.
"The Neutral Hydrogen Kinematics of the Dwarf Galaxy Merger NGC 3239,"
Macalester Journal of Physics and Astronomy: Vol. 7
, Article 2.
Available at: https://digitalcommons.macalester.edu/mjpa/vol7/iss1/2