Bar-Halo Interaction and Bar Growth
Astrophysics
2010-04-21 v1
Abstract
I show that strong bars can grow in galactic discs, even when the latter are immersed in haloes whose mass within the disc radius is comparable to, or larger than, the mass of the disc. I argue that this is due to the response of the halo and in particular to the destabilising influence of the halo resonant stars. Via this instability mechanism the halo can stimulate, rather than restrain, the growth of the bar.
Keywords
Cite
@article{arxiv.astro-ph/0203368,
title = {Bar-Halo Interaction and Bar Growth},
author = {E. Athanassoula},
journal= {arXiv preprint arXiv:astro-ph/0203368},
year = {2010}
}
Comments
10 pages, 2 figures, accepted for ApJ Letters