Departures From Axisymmetric Morphology and Dynamics in Spiral Galaxies
Abstract
New HI synthesis data have been obtained for six face-on galaxies with the Very Large Array. These data and reanalyses of three additional data sets make up a sample of nine face-on galaxies analyzed for deviations from axisymmetry in morphology and dynamics. This sample represents a subsample of galaxies already analyzed for morphological symmetry properties in the R-band. Four quantitative measures of dynamical nonaxisymmetry are compared to one another and to the quantitative measures of morphological asymmetry in HI and R-band to investigate the relationships between nonaxisymmetric morphology and dynamics. We find no significant relationship between asymmetric morphology and most of the dynamical measures in our sample. A possible relationship is found, however, between morphology and dynamical position angle differences between approaching and receding sides of the galaxy.
Keywords
Cite
@article{arxiv.astro-ph/0004113,
title = {Departures From Axisymmetric Morphology and Dynamics in Spiral Galaxies},
author = {David A. Kornreich and Martha P. Haynes and R. V. E. Lovelace and Liese van Zee},
journal= {arXiv preprint arXiv:astro-ph/0004113},
year = {2009}
}
Comments
24 pages, 19 figures, AASTeX, accepted for publication in AJ, postscript figures available at ftp://culebra.tn.cornell.edu/pub/david/figures.tar.gz