Lopsidedness in WHISP galaxies
Cosmology and Nongalactic Astrophysics
2015-05-20 v1
Abstract
Observations of the stellar and gaseous components in disc galaxies often reveal asymmetries in the morphological and kinematic distribution. However, the origin of this effect is not well known to date, and quantitative studies are rare. Here, we present the first statistical investigation of a sample of 76 HI discs using the WHISP survey. We perform a Fourier analysis to study the morphological lopsidedness. This allows to trace the degree of asymmetry with radius. We further investigate the dependence on, e.g., the morphological type and the environment.
Cite
@article{arxiv.1011.5624,
title = {Lopsidedness in WHISP galaxies},
author = {Eva Juette and Janine van Eymeren and Chanda Jog and Ralf-Juergen Dettmar and Yelena Stein},
journal= {arXiv preprint arXiv:1011.5624},
year = {2015}
}
Comments
conference proceedings of JENAM 2010 meeting "Environment and the Formation of Galaxies: 30 years later", to appear in Astrophysics & Space Science Proceedings, Springer