- "The photometric and kinematic structure of face-on galaxies. II. integrated line profile characterization and the origin of line profile asymmetry"
Andersen DR, Bershady MA, Astrophysical Journal 700 (2): 1626-1646 Augh 2009. We perform a moments analysis of HI and HII global line profiles for 33 nearly face-on disk galaxies for the threefold purpose of rationalizing and interpreting line profile indices in the literature, presenting robust moment definitions with analytic error functions calibrated against Monte Carlo simulation, and probing the physical origin of line profile asymmetries.
- "The photometric and kinematic structure of face-on disk galaxies. I. Sample definition, H alpha integral field spectroscopy, and HI line widths"
Andersen DR, Bershady MA, Sparke LS, et al., Astrophysical Journal Supplement Series 166 (2): 505-525 Oct 2006. Authors find H I and H alpha line profiles to be similar in width but different in shape, indicating that we are observing different spatial distributions of ionized and neutral gas in largely axisymmetric systems with flat outer rotation curves.
- "A search for low surface brightness structure around compact narrow emission line galaxies"
Barton EJ, van Zee L, Bershady MA, Astrophysical Journal 649 (1): 129-149 Part 1 Sep 2006. The majority of the CNELGs are consistent with progenitors of intermediate-luminosity dwarfs and low-luminosity spiral galaxies with small disks.
- "Integral field unit observations of NGC 891: Kinematics of the diffuse ionized gas halo"
Heald GH, Rand RJ, Benjamin RA, et al., Astrophysical Journal 647 (2): 1018-1029 Part 1 Aug 2006. Based on intensity cuts made parallel to the major axis in the ballistic model and an H alpha image of NGC 891 from the literature, authors conclude that the DIG halo is much more centrally concentrated than the model, suggesting that hydrodynamics dominate over ballistic motion in shaping the density structure of the halo.